TLS signed “F. D. Roosevelt,” one page, 8 x 10.5, Navy Department letterhead, April 12, 1918. Roosevelt writes to E. K. Trowbridge. In part: “Your prompt and patriotic response to the Navy’s call for binoculars, telescopes, and spy-glasses, is most appreciated. The glasses will be very useful in the prosecution of Naval Operations until victory is won. At the termination of the war, if possible, every effort will be made to return them to you….” Accompanied by the original mailing envelope. Intersecting mailing folds (vertical fold to last name) and a hint of mild wrinkling, otherwise fine condition. Auction LOA John Reznikoff/PSA/DNA and R&R COA.