No.	Firm / Address / Years of Use / Notes	Perfin	Stamps Perforated (Scott Catalog)	Cover (Click to enlarge)
Perfins on the Stamps of Mexico Section 1 – Perfins on Postage Stamps Part 1 — Perfins of Companies or Presumed Companies
A1	Bartning y Sucesores (previously Bartning Hermanos y Cía.) Mazatlan 1884 - 1896 Click on this link for more Bartning y Sucs. stamps and covers.	B	151, 153, 154, 155, 156, 157, 158, 160, 161, 169, 171, 175, 178, 179, 180, 187, 188, 189, 192, 198, 216, 218, 220, 243, 244, 247, 248, 252, 261	14 April 1892 from Mazatlan. Click on image to enlarge.
A1.5	Imagen Corregidora, Querétaro 2009 - 2021 Click on this link for more Imagen stamps and covers.	Circle (c)	2659	13 March 2010 from Corregidora, Querétaro, Mexico. Click on image to enlarge.
A2	Cía. de Ferrocarril Mexicano Mexico City 1899 - 1914 Click on this link for more Cia./F.M. stamps.	Cia./F.M.	299, 304, 305, 307, 310, 311, 312, 313, 314, 315, 316, 317, 318, 427	No cover has been found to document this company's use of this pattern.
A3	R.L. Dun & Co. Mexico City 1903 - 1915 Subsidiary of the U.S. company of the same name. Click on this link for more DUN stamps and covers.	DUN	304, 305, 307, 308, 311, 314, 424, 427, 488, 505	ca. 1910. Self addressed stamped envelope
A4	Unknown Company 1903	F.V.	304	No cover has been found to document this company's use of this pattern.
A5	G. Lohse &Cía, Sucesores Mexico City 1899-1915 Click on this link for more G.L./y Cia/Sucs stamps and covers.	G.L./&Cia/Sucs	296, 299, 301, 304, 305, 307, 308, 310, 311, 314, 315, 423, 427, 501, 502, 505, 578	30 December 1905 from Mexico City. Click on image to enlarge.
A6	Heymann Sucesores Mazatlan 1895 - 1897 Click on this link for more H.S. stamps and a cover.	H.S.	243, 244, 247, 257, 261	18 August 1897 from Mazatlan. The oval handstamp of the Heymann Sucesores, Mazatlan appears on the reverse side of the cover. Click on image to enlarge.
A7	Julio Albert y Cía Mexico City 1899 - 1908 Click on this link for more J.A./y/C.S. stamps and covers.	J.A./y/C.S.	299, 300, 304, 305, 306, 307, 308, 309	27 March 1908 from Mexico City. Click on image to enlarge.
A8	Johannsen, Felix y Cía Mexico City 1899 - 1917 Click on this link for more JF&Co stamps and covers.	JF&Co	300, 310, 311, 312, 313, 314, 315, 317, 319, 423, 426, 427, 428, 429, 430, 484, 487, 500, 501, 502, 503, 504, 505, 507, 511, 513, 521, 524, 577, 578, 580, 610, 613	22 April 1903 from Mexico City. Click on image to enlarge.
A8.5	Unknown Company 1899	J.O./&C(o/...)	299	No cover has been found to document this company's use of this pattern.
A9	Melchers Sucesores Mazatlan 1884 - 1892 Click on this link for more M stamps and a cover.	M	151, 158, 160, 169, 171, 173, 175, 180, 184, 187, 188, 204, 220, 225	3 February 1886. Click on the image to enlarge.
A10	Unknown Company Mexico City 1903 - 1908	MB/&/CS	304, 305, 307, 308	No cover has been found to document this company's use of this pattern.
A10.5	Momsen Dunnegan & Ryan El Paso, Texas 1917	MDR	614	No cover has been found to document this company's use of this pattern with Mexican postage. This perfin pattern is the same as U.S. pattern M097 which is sometimes found on Mexican stamps.
A11	Mexico Mine & Smelter Supply Co. Mexico City; Puente de San Francisco 1903 - 1910 Click on this link for more M.M./S.S./C. stamps and covers.	M.M./S.S./C.	304, 305, 307, 308, 314	9 April 1904 from Mexico City. Click on image to enlarge.
A12	Mosler Safe Company Mexico City 1899 - 1910 Click on this link for more MOS/LER stamps.	MOS/LER	300, 310, 311, 312, 313, 314, 315, 316, 318, 319	No cover has been found to document this company's use of this pattern.
A13	National City Bank P.O. Box 87 Mexico City 1938	NCB	743	No cover has been found to document this company's use of this pattern.
A14	National Paper & Type Co. Mexico City 1910 - 1917 Click on this link for more NP/&T stamps.	NP/&T	310, 314, 315, 427, 511, 611, 613, 614	No cover has been found to document this company's use of this pattern.
A15	Roberto Boker y Cía Mexico City, Valle de Santiago 1899 - 1903 Click on this link for more R.B./&C. stamps.	R.B./&C.	294, 296, 299, 300, 302, 304, 305, 306, 307, 308, 309	24 December 1903 from Mexico City. Click on image to enlarge.
A15.5	Rodríguez González é Hijos Saltillo, Coahuila, Mexico 1910 Click on this link for a cover and stamp.	6 pt Star	314	1910(?) from Saltillo, Mexico to Rochester, NY. Click on image to enlarge.
A16	Royal Insurance Co., Ltd. Mexico City 1899- 1917 Click on this link for more RIC(o)/LTD stamps.	RIC(o)/LTD	299, 300, 311, 315, 317, 318, 427, 505, 512, 544, 578, 614	27 July 1914 from Mexico City. Click on image to enlarge.
A17.5	Unknown Company Mexico City 1950	R.P.D.	C189	No cover has been found to document this company's use of this pattern.
A18	Unknown Company 1903 - 1912	SG	314, 315, 317	No cover has been found to document this company's use of this pattern.
A19	Unknown Company Mexico City 1886 - 1890 Click on this link for more T.B. stamps.	T.B.	178, 187, 188, 218, 220	No cover has been found to document this company's use of this pattern.
A20	Unknown Company 1903 - 1905	V.E./&C.	307, 308	1905. Frustrating to find a cover without a corner card identification! Click on image to enlarge.
A21	Unknown Origin 1895 - 1903 Click on this link for more Ω stamps.	Ω	255, 268, 277, 288, 289, 290, 294, 295, 297, 298, 299, 300, 301, 302, 303, 304, 305, 307, 308	No cover has been found to document a company's use of this pattern.
C1	Gobierno de Michoacán City of Morelia 1899 - 1917 Click on this link for more "Gobierno de Michoacán" covers and stamps.	G.deM.	296, 304, 305, 306, 307, 310, 311, 312, 314, 316, 370, 425, 502, 519, 521, 578, 608, 610, 611, 612, 613, 614	9 August 1917 postmark. City of Jiquilpan, State of Michoacán. Click on image to enlarge.

No.	Perfin	Example(s)
Perfins on the Stamps of Mexico Section 1 – Perfins on Postage Stamps Part 2 — Symbol or Number Perfins found on Postage Stamps
AA1	Numbers
AA2	Changeable Numbers
AA3	5 Point Star - 4mm
AA5	Bottom-to-bottom 5's
AA4	Double Cross
AA6	Plus Sign (4mm)
AA7	Anchor
AA8	3 Line Design

No.	Firm or Entity / Address / Years of Use / Notes	Perfin	Front
Perfins on the Stamps of Mexico Section 2 – Perfins on Mexican Revenue Stamps Part 1 — Perfins of Companies or Place Names
B1	Unknown Company 1897	A.&C	-
B2	Unknown Company 1937	AM
B3	Bartning y Sucesores (previously Bartning Hermanos y Cía.) Mazatlan 1884 - 1898	B
B4	Heymann Sucesores Mazatlan 1895	H.S.
B5	Melcher's Mazatlan 1887 - 1893	M
B6	Unknown company	R
B7	Unknown Company 1890 - 1891	T.B.
B8	Union Discount Company of London, Ltd. 1899	U.D.Co.L(d)	-
B9	Ciudad Juarez	C.JUAREZ	-
B10	State of Durango, Victoria de Durango	DURANGO
B11	City of Nueva Laredo (same punch as BA10 on especial de aduanas)	LAREDO
B12	City of Monterrey	MONTERREY
B13	City of Nogales	NOGALES
B13.5	City of Ciudad Juarez (same punch as BA15 on especial de aduanas)	PASO DEL NORTE
B14	City of Piedras Negras (same punch as BA19 on especial de aduanas)	PIEDRAS NEGRAS
B15	Progreso 1887 - 1888 (same punch as BA23 on especial de aduanas)	PROGRESO
B16	City of Tampico (same punch as BA27.5 on especial de aduanas. Patterns show either 4 or 5 punches in the cross-piece of the "T".	TAMPICO
B17	Todos Santos (Municipality) 1897 - 1902 (same punch as BA29 on especial de aduanas)	T.S.
B18	City of Veracruz (same punch as BA33 on especial de aduanas)	VERACRUZ
B19	City of Veracruz (same punch as BA34 on especial de aduanas)	VERACRUZ
B20	HIJO (partial)	HIJO
B21	(?)N ANT(?) (partial)	N ANT
B22	Bank of N.(?) (partial).	BANK of N

Perfins on the Stamps of Mexico Section 2 – Perfins on Mexican Revenue Stamps Part 2 — Perfins on Customs Revenue Stamps (Especial de Aduanas) Most images below are depicted in mirror image.
BA1 — ACUPULCO	BA2 — ALTATA	BA3 — ASCENSIÓN
BA3.5 — BAHIA MAGDALENA	BA4 — CABO SAN LUCAS	BA5 — CAMARGO
BA6 — CAMPECHE	BA8 — FRONTERA	BA9 — ISLA DEL CARMEN
BA10 — LAREDO (pattern #1)	BA11 — LAREDO (pattern #2)	BA11.5 — MANZANILLO
BA12 — MATAMOROS	BA13 — MAZATLÁN	BA14 — MIER
BA15 — PASO DEL NORTE (Ciudad Juarez) (pattern #1)	BA16 — PASO DEL NORTE (Ciudad Juarez) (pattern #2)	BA17 — PASO DEL NORTE (Ciudad Juarez) (pattern #3)
BA18 — PASO DEL NORTE (Ciudad Juarez) (pattern #4)	BA19 — PIEDRAS NEGRAS (Pattern #1)	BA20 — PIEDRAS NEGRAS (Pattern #2)
BA21 — LA PAZ	BA22 — PALOMINAS	BA23 — PROGRESO
BA24 — PUERTO ÁNGEL	BA25 — SAN BLAS	BA26 — SOCONUSCO
BA27 — TAMPICO (pattern #1)	BA27.5 — TAMPICO (pattern #2)	BA28 — TIJUANA
BA29 — TODOS SANTOS (Pattern #1)	BA29.5 — TODOS SANTOS (Pattern #2)	BA29.8 — TONALA
BA30 — TUXPAM	BA31 — VERACRUZ (pattern #1)	BA32 — VERACRUZ (pattern #2)
BA33 — VERACRUZ (pattern #3)	BA34 — VERACRUZ (pattern #4)

Scans of the various ports of entry perfins on especial de aduanas, click here

ADUANAS

The large size Especial De Aduanas stamps began in the 1885-86 fiscal year and ended in 1892-93 fiscal year. For the next three years Revenue stamps were overprinted "ADUANAS DE _(the port of entry)_" with either an overprint of the port name or a perfin, or both, and sometime seen with a 3mm or 4mm hole punch. The 1893-94 Documentos y Libros Revenues had "Aduanas De___ " overprinted on 12 values, 1c to 50 pesos. The 1894-95 Documentos y Libros Revenues had "Aduanas De___ " on 11 values, 1c to 50 pesos, but not 25 pesos. Finally, the 1895-96 Renta Interior Revenues had "Aduanas De___ " printed on 10 values, but had no 3 centavos nor 25 pesos values in the set.

The following are place names are known to be in perfins on aduanas: Acupulco, Altata, Ascensión, Cabo San Lucas, Camargo, Campeche, Frontera, Isla del Carmen, Laredo (2 known perfins), Matamoros, Mazatlán, Mier, Paso del Norte (Cuidad Juarez; 4 known perfins), Piedras Negras (2 known perfins), La Paz, Progreso, Puerto Ángel, San Blas, Tampico (2 known perfins), Tijuana, Todos Santos, Tonalá, Tuxpan and Veracruz (4 known perfins).

The following thumbnails connect you to a collection of customs stamps (aduanas) from 1885 to 1896, from various ports of entry wherein the stamps were perforated with the names of such ports.

No.	Perfin	Origin / Use / Address / Years of Use / Notes
Perfins on the Stamps of Mexico Section 2 – Perfins on Mexican Revenue Stamps Part 3 — Perfins of Numbers or Changeable Numbers
BB1	11	Unknown Origin Note: This perfin is known on postage stamps and revenue stamps.
BB2	+ (plus sign)	Identical with AA6, 4mm, followed by changeable numbers
BB3	+ (plus sign)	Similar, but larger than BB2, followed by changeable numbers
BB4	5	Unknown Origin
BB5	$ (dollar sign)	Unknown Origin; found on Renta Interior 1903-1907. $ sign is followed by changeable numbers
BB6	*	Unknown Origin; found on Documentos 1888-1889. * sign is followed by changeable numbers
BB7	ASA/051	Airport Departure Tax Revenue labels. First identified by Stevens (Mexico Revenue Stamps, 1979). See Michael D. Roberts, Mexico's Revenue Stamps, page 155.

No.	Perfin	Origin / Use / Address / Years of Use / Notes
Perfins on the Stamps of Mexico Section 2 – Perfins on Mexican Revenue Stamps Part 4 — Perfins consisting of words other than place names Most images below are depicted in mirror image.
BC1	AMORTIZADO 6 mm high	Precious Metals, 1904 - 1905
BC2	AMORTIZADO 7.5 mm high	Precious Metals, 1900 - 1911
BC3	ANULADO 8.5 mm high	Precious Metals, 1897 - 1905
BC4	ANULADO 10.5 mm high	Precious Metals, 1900 - 1911
BC5	CANCELADO 6.5 mm high	Renta Interior, 1941
BC6	PAGADO 6 mm high	Renta Interior, 1897-1898
BC7	PAGADO 9 mm high	Renta Interior, 1926
BC8	PAID 12.5 mm high	Renta Interior, 1902-1903