Topical stamp association

American Topical Association
Founded in 1949 and is now the largest philatelic society devoted specifically to topical stamp collecting.
Founded in 1949 and is now the largest philatelic society devoted specifically to topical stamp collecting.

Northwest Federation of Stamp Clubs
35 member clubs and philatelic organizations in Alaska, Idaho, Montana, Oregon and Washington as well as British Columbia and Alberta in Canada.
35 member clubs and philatelic organizations in Alaska, Idaho, Montana, Oregon and Washington as well as British Columbia and Alberta in Canada.

Ships on Stamps Unit
Dedicated to the study of philatelic material pertaining to watercraft on stamps, to sharing knowledge, to encouraging the growth of the hobby and to supporting the preservation of our maritime heritage.
Dedicated to the study of philatelic material pertaining to watercraft on stamps, to sharing knowledge, to encouraging the growth of the hobby and to supporting the preservation of our maritime heritage.

SOSSI Scouts on Meter Stamps
Meter stamps are produced by machines for franking mail. They can include Scout topical themes or special events as a slogan.
Meter stamps are produced by machines for franking mail. They can include Scout topical themes or special events as a slogan.
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