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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