Specimens of the Postage Stamps to be issued by the General Post Office to commemorate the Silver Jubilee, 1935. Jubilee Stamps -- The new Jubilee stamps photographed at the G. P. O. to-day. A special series of stamps will soon be on sale to the general public for the Jubilee Season, and the G. P. O. is now busily engaged in allocating the new stamps to the post offices of Gt. Britain. May 20, 1935. (Photo by Topical Press).