About this 3D model

Heng scheer and thorne on heavy tanks prototype, which was completed in 1938 prototype. In September 1939 as VK3001 become heavy tank plan choice, DW project was cancelled. But after few years, DW I and DW II prototype was used for various experiments, until 1941. you can buy more drawings from http://cgi.ebay.com.hk/ws/eBayISAPI.dll?ViewItem&item=261494620654