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Black or violet rubber handstamp overprint (a diagonal "PORTO", each letter 3½ in height).
Pd 1 (73A)
Pd 2 (74A)
Pd 3 (75A)
Pd 4 (76A) |
Pd 5 (77A)
Pd 6 (78A)
Pd 7 (79A)
Pd 8 (80A) |
Pd 9 (81A)
Pd 10 (82A)
Pd 11 (83A)
Pd 12 (84A) |
Pd 13 (73B)
Pd 14 (74B)
Pd 15 (75B)
Pd 16 (76B) |
Pd 17 (77B)
Pd 18 (78B)
Pd 19 (79B)
Pd 20 (80B) |
Pd 21 (81B)
Pd 22 (82B)
Pd 23 (83B)
Pd 24 (84B) |