COLONIAL PERIOD UP TO 1821
a

1818 OCTOBER 5: ETZATLAN to GUADALAJARA
Red ETZA / TLAN in oval postmark.

1798 APRIL 4: TOLUCA to MEXICO
Black TOLUCA in oval postmark.

Ca 1820: TOULCA to MEXICO
Wrapper with black straight line TOLUCA postmark.

1786 january 27: GUANAJUATO to MEXICO
Black postmark. Charged "2" Reales in Mexico.

1819 june 16: ZACUALCO to AGUAS CALIENTE
Boxed-in ZACUALCO postmark in black.