Plate Block Collecting

Plate Block Collecting

Plate numbers were put in the margins of United States sheets so that later the printer would know which sheets were printed from which plates so that plate wear and damage could be monitored. Collectors noticed the marginal numbers and began at first collecting single stamps with the selvage attached as an adjunct to their collection.

Stamp Forgeries

Stamp Forgeries

Almost from the very day that Philately began as a serious hobby, stamp collectors were plagued by forgeries. Forgeries exist in two types; those made for philatelic consumption and those produced to defraud the postal service of revenue (called postal forgeries).