50 CENTAVOS GREEN, LITHOGRAPHED

WITHOUT DISTRICT NAME, Block of 10

MEXICO
DOUBLE TRANSFER ERROR

CHALCO

MERIDA

S. L. POTOSI

VERA CRUZ

1866, NOV 1:  YRAPUATO to MEXICO
Pair of 50 cts green on registsred front.

ONE OF THREE KNOWN REGISTERED LETTERS
OF THE MAXIMILIAN PERIOD

QUERETARO, Block of 10

LARGEST KNOWN USED BLOCK

1866, NOV 26:  CORDOVA to PUEBLA
With 50 cts green.
a
a
a

1866, OCT 2:  MEXICO to GUADALAJARA
With 50 cts green single and strip of 5 combined with 
13 cts blue and 25 cts orange.

LARGEST FRANKING KNOWN