BLACKSTONE, Harry, Sr. (1885-1965). Signed application to the International Brotherhood of Magicians. [Ohio, ca. 1930s]. Original yellow application form, SIGNED by Blackstone at the bottom as an endorsement for membership (Blackstone lists his address in his hand as ?Colon Mich.?) Sheet approximately 11 x 8 ??. Creased, several tears. Good. Sold with a Western Union telegram from Blackstone to Geo Johnstone, inviting Johnstone to join him in Milwaukee. Dated Aug 12, 1944. On Western Union telegraph paper with text affixed to paper. Approximately 6 x 8?. Creasing, some toning, light wear. Very good. And including a program for Blackstone?s performance at the Colonial Theatre in Boston [ca. 1948] and Popular Science Monthly, May 1930 (with an article by Blackstone, ?Fake Hypnotism?). Both in original wrappers (some general wear, soiling).