Selected study unit - The Perfins Club

One of the strategies that corporations and postal authorities have employed to prevent theft was to mark the items that they owned with their logo or other identifying marks. When it comes to postage stamps, sometimes overprints were used, but from about 1900 through the middle of the 20th century, one practical method of identification has been to perforate a design into the stamp. Stamps that are so marked are known as "perfins" (a portmanteau of "perforated" and "interior"). The Perfins Club was formed in 1943 to help perfin collectors in their enjoyment of the hobby. Membership in The Perfins Club includes a subscription to the almost monthly Perfins Bulletin and other benefits. More information is at the club's website

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