Expertizing Services
American Philatelic Expertizing Service. Go to their website, or write them at -
APES
P.O. Box 8000
State College, PA 16803 ...
Which expertizing service is best?
That’s a matter of individual preference, usually formed by experience. We view all recognized expertizing organizations as serving the philatelic community in friendly competition.
Next comes "Expertizing Services." Most collectors know the big three when it comes to expertization: the American Philatelic Expertizing Service, the Philatelic Foundation and Professional Stamp Experts.
One of the more respected expertizing services. They offer a wide variety of certification services and information. For stamp investors their quarterly online price guide offers information on trends in stamp values.
*Expertization - the process by which an expertizing service renders an authoritative opinion on the genuineness of stamps and covers.
APEX: American Philatelic Expertizing Service (State College, PA, U.S.A.) [abbr.].
APHV: Allgemeiner Postwertzeichen-Händler-Verband e.V. (German Stamp Dealers Association) [Germany] [abbr.].
Expertization. The examination of a philatelic item by an acknowledged expert in order to see if the item is genuine. This generally means an experizing body such as the American Philatelic Expertizing Service.
American Philatelic Expertizing Service: APS service that gives opinions on the genuineness of stamps and covers.
American Philatelic Research Library: library of the American Philatelic Society, APS, located in State College, Pa.
 See also: Stamp, Expertizing, Philatelic, Cover, Used
  
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