American Stamp Dealer Association (USA). Bundesverband des Deutschen Briefmarkenhandels (DE).
Nederlandse Vereniging van Postzegelhandelaren (NL). Stockbook with over 330 MNH souvenir sheets of the world, including better ones. Somewhat mixed quality (some with toned gum). The item "Lot 31524 Collection souvenir sheets of the world 1937-1985" is in sale since Sunday, February 2, 2020. This item is in the category "Stamps\Worldwide\Collections, Lots". The seller is "clemsmits" and is located in Nieuwegein. This item can be shipped worldwide.