Porte de Mar

The Porte de Mar stamps of Mexico (issued 1875) were used to indicate payment in cash to mail steamers. They can have district overprints. They are scarce genuinely used and both stamps and cancels have been forged.

The small 1879 issue in colors was never used. The oval in frame without horizontal lines is another that was never used.

 File:Mexico 12c porte de mar.jpg|Note the carefully inserted "2". All values used the 10c as the basic model so all other values show the fine cut lines. File:Mexico 50c lg numerals PdeM.jpg|The large numerals type. Compare with the stamp to left. 

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