This vides was digitized from a reel of 16mm film with no exterior label. The film date was 2/72. Also marked on the film was "AMSTA - RURV - LAND LOCOMOTIVE - RIVER CROSS." This appears to show the development and prototype of the M113 APC and some amphibious jeep prototypes. It finishes with an All-Terrain Vehicle. If you can add to the video, please comment. For more great videos, SUBSCRIBE! And for a good read, check out my books at https://edsemler.com/ To help support my channel https://www.paypal.com/paypalme/mkcmlt