Vienna Archives - UN Stamps
Daniel F. Kelleher Auctions, LLC Sale - 769 Page 61
Weekly Online Sales, a Division of Daniel F. Kelleher Auctions, LLC Sale - 5100 Page 47
Daniel F. Kelleher Auctions, LLC Sale - 721 Page 5
Vienna Archives - UN Stamps
UNITED NATIONS
Vienna Archives - UN Stamps
Vienna Archives - UN Stamps
United Nations Stamps & Albums - iHobb
Daniel F. Kelleher Auctions, LLC Sale - 760 Page 26