2023 Herbert Cover Contest Categories

A cover with the largest number of different stamps picturing ships

A cover with a stamp picturing a marine mammal

A cover with the most unusual postmark in blue

A first day cover with the most attractive cachet

The most overtly political or ideological cover

A cover whose addressee has the longest title

A cover with the largest number of "via airmail" etiquettes

A commercial advertising cover with an illustration of the most complicated machine

A postally-mailed cover franked only with bird stamps

The most attractive cover related to war.

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