CANADA 1935 Silver Jubilee 10c and 13c PROOF, SG339/40Canada 1935 Silver Jubilee 10c and 13c Proof, SG339 40. Stamp size trial colour die proofs on card, respectively in olive and violet, the 10c being a progressive state with some shading lines missing from the sky and water. Minor marks at corners from archival mounting, and hand stamps on reverse, but an attractive and very rare pair. The 1935 Silver Jubilee issue commemorated the 25th anniversary of King George Vs accession to the throne, released on