USAF SM-68 Titan I Contractor Model. Approx. 17 in. tall with detachable first and second stages. Made by Topping, Inc. of Akron, Ohio for the Martin Company. The model was given to Wally Schirra in the mid 1960's by Martin. INSCRIBED AND SIGNED BY SCHIRRA discretely on the lower first stage with: ''from my collection - Wally Schirra''.