London & Toronto: Thornton Butterworth Limited & Thomas Nelson and Sons, Ltd., 1930. First edition, first printing, first state, first binding state, Canadian issue. Hardcover. This extraordinary copy of Winston Churchills autobiography originally came to us from the personal collection of Churchill's bibliographer, Ronald I. Cohen. This is the extravagantly rare Canadian issue of the first edition in the unique Canadian dust jacket one of only two known to us. Jacketed British first editions are quite rare enough, but, per Langworth (p.133) "First Editions exist (in first and later impressions) with special dust jackets for the Canadian market, the jacket spine imprinted "THOMAS NELSON | AND SONS, LTD" over the Thornton Butterworth name. The price $4.50 appears on the spine and front face. The back face is mostly blank except for a statement that the work is published in the USA by Scribners as A Roving Commission." This Canadian issue dust jacket is in very good overall…