1911-33 COLLECTION ON COMMERCIAL MAIL: Four albums containing a collection of postcards, envs. and some pieces with selected examples inc. 1911 PPC cancelled with a mainly fine "CRYSTAL PALACE/[flag] FESTIVAL OF/EMPIRE/IMPERIAL/EXHIBITION" cds; 1918 PPC cancelled with a mainly fine type 2A "BUY NATIONAL/WAR BONDS" machine cancel; 1922 env. cancelled with an unboxed type 5B "CABLE TO CANADA/AUSTRALIA &/NEW ZEALAND" Hey dolphin machine cancel; 1924 PPC with fine type 9B continuous "BRITISH EMPIRE/ULSTER/PAVILION" Londonderry Krag machine cancel; 1925 PPC with type 20B Torchlight Tattoo dots Hey Dolphin machine cancel (and other examples with lines or dots in lines); 1925 telephone advertising card with a v.fine "EMPIRE EXHIBITION/1925/POST OFFICE EXHIBIT/GOVERNMENT PAVILION/WEMBLEY" cachet; 1957 PPC with a v. fine "DOUGLAS/[date]/ISLE OF MAN/GOLDEN/Jubilee/T.T. RACES/ISLE OF MAN/3.5.7.JUNE 1957" machine cancel; and many other more common cancellations. Items in fine to excellent condition with mainly fine cancellations. (c.320 cards/envs.) (Image)