TLS as president, one page, 6.75 x 8.75, White House letterhead, March 21, 1963. A "Memorandum for the Secretary of Defense," Robert McNamara, in full: "I note in the New York Times today that the Swedes have developed the turret-less tank with a revolutionary low silhouette weighing only 37 tons. I wonder how the military feels it compares with the tanks that will come off our production lines in the next few months." An ink stamp at the bottom reads: "Sec Def has seen, 1 May 1965." In very good to fine condition, with staple holes, and a small stain, to the top edge. Accompanied by a printout of the New York Times column referenced, describing Sweden's tank prototype. America made some strides forward in its tanks in 1963, upgrading the M60 Patton to the M60A1, and the M48 Patton to the M48A3.Format: TLS