The tank data books were generated by the Proving Grounds personnel and published as a public service. The company is long defunct, so I made copies so they wouldn't be lost.
Brilliant! I know Ray Merriam offers the old "History of Tanks Volume 1", which has some of the same photos of the early American vehicles, but this is much nicer. I likely will use some of them in For Purpose of Service Test and will be sure to credit you and World War II Resources/HyperWar for it. Thanks again!
BTW, the line drawings of the Tiger I are particularly impressive to me. I've never seen them used in a tank book. (And yeah, I'm a sailor, so...)
Yeah, the tiger drawings have been used before. Might not be in a generic tank book, but I have certainly seen them in a few Tiger books.
Thanks for sharing these, OP. Do you have (access to) any other war-era APG records? EDIT: Nevermind, I see where they're from. Poking around the site.