You can buy and bid with confidence as Smits Philately is a member of the following stamp dealer organisations:
ASDA
American Stamp Dealer Association (USA)
PTS
Philatelic Traders Society (UK)
APHV
Bundesverband des Deutschen Briefmarkenhandels (DE)
NVPH
Nederlandse Vereniging van Postzegelhandelaren (NL)
Folder with 6 good Zeppelin covers from USA, Finland, Saar and Paraguay (3x). Very high catalogue value!
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