1948 Vintage Original Autograph Harry Blackstone Sr Signed Letter & Envelope LOAFamous stage magician and illusionist Harry Blackstone Sr. handwritten letter on personal letterhead with accompanying envelope Postmarked August 4, 1948 letter addressed to Elmer Eckam in Rochester and reads: "Where in hell are those umbrellas I want to use them this season Need them by August 20 as we open in Canada Aug 24 So RUSH THEM." Great condition; light creasing, no rips, no tears. Haloing ink from onetime exposure to moisture Size: 8. 5" x