175-mm gun on lightweight carriage
U.S. Department of the Army
<a rel="nofollow" class="external text" href="https://babel.hathitrust.org/cgi/pt?id=osu.32435062847025;view=1up;seq=184">Annual Report of the Secretary of the Army July 1, 1958 to June 30, 1959</a>, Page 176, Figure 14. 175-mm. gun on lightweight carriage