Mexico – back of the book issues

Insured mail
 File:Mexico insured letter.A.webp 
 * In 1935, three designs with additional inscription SEGURO / POSTAL were issued with CORREOS MEXICO watermark.
 * In 1944-45, they were issued on S.H.C.P. MEXICO watermarked paper.
 * In 1947, they were issued on GOBIERNO MEXICO watermarked paper.
 * In 1950, a bank vault design was issued, watermarked GOBIERNO MEXICO.
 * In 1954-75, values were issued on MEX-MEX watermarked paper.
 * In 1967, values were issued on MEX and Eagle watermarked paper.
 * In 1976-81, a padlock design was issued, perf 14 and unwatermarked.
 * In 1979, values were issued on MEX-MEX watermarked paper.
 * In 1983-86, a modified design was issued with padlock measuring 20x31mm, perf 14x14½ and unwatermarked again.

Official isues




Parcel post

 * In 1941, two values with a design of a steam locomotive were issued, watermarked CORREOS MEXICO.
 * In 1944-46, they were issued watermarked S.H.C.P. MEXICO and eagle.
 * In 1947-49, the two values were issued watermarked GOBIERNO MEXICANO and eagle.
 * In 1951, two values in a design of a diesel locomotive were issued, watermarked GOBIERNO MEXICANO and eagle.
 * In 1955, the two previous values were issued watermarked MEX-MEX and eagle.



Postage due
 File:Mexico 1908 due.jpg 
 * In 1908, five numeral design values were issued.

Postal tax
Postal tax stamps are recognizable by being 1 centavo values or other low denominations. 
 * In 1925, a 1c brown Morelos Monument design was issued rouletted with Diagonal CORREOS MEXICO watermark or unwatermarked.
 * In 1926, it was reissued perf 12.
 * In 1929, the previous design was overprinted vertically "Protección / a la Infancia: in red.
 * In 1929, a 1c mother and child design was issued additionally inscribed "PROTEJA A LA INFANCIA". 2c and 5c values were issued in a slightly different design. The 1c and 2c were also issued in a slightly different size, 18x24½ vs. 19x25¼.
 * In 1930, both 2c sizes and the smaller 5c value were surcharged "HABILITADO / $0.01" vertically.
 * In 1931, the 1c GOBIERNO overprint was overprinted again with "PRO-INFANCIA" diagonally.
 * In 1934, a 1c design of an Amerincian mother and child was issued.
 * In 1939, a puzzling 1c prussian blue design was issued. It turns out to be aman being attacked by a giant mosquito. This is watermarked CORREOS MEXICO.
 * It was reissued in 1944 watermarked S.H.C.P. MEXICO and eagle.
 * It was again reissued in 1947 with GOBIERNO MEXICANO and eagle watermark.
 * In 1941, a 1c carmine Hidalgo design was issued.
 * In 1946, a man learning how to read design was issued.



Special delivery
 File:Mexico Special D.jpg 

Nonpostal
 File:Mexico Xmas seal.jpg|Christmas seals exist in various designs. Note the cross of Lorraine, indicating support of anti-tuberculosis charities. 