Mailing a letter or postcard to oneself to collect the canceled stamp and postmark is not that unusual, but no one else has taken it to the extreme of Alan A. Blackman, 1125 Shrader St., San Francisco ...
No true philatelist would pass up an 1860s stamped Pony Express envelope, now valued at as much as $50,000. No wonder Rita Braver can find dedicated stamp collectors in all sorts of places: Captain ...
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