BRITISH VIRGIN ISLANDS 1973 (MNH) ½C INTERPEX STAMP EXHIBITION, NEW YORK DOUBLE PANE
½c Interpex Stamp Exhibition, New York double pane of 50 stamps with central gutter. Only 20 such panes reported to have been sold in this format (and the majority separated) at the American Stamp Dealers fair; the remainder having been issued in panes of 25. Fresh and fine. Mint never hinged. SG284; SC249
