Boston 16, Mass. Atlas Plywood Corporation circa 1956. 9 1/2 x 11 3/8 inches (dimensions of tabbed loose leaf binder). Fourteen 8 x 10 inch (approximate) photographs plus "title page" photograph. Near Fine. Boards. 
A loose leaf binder with photographs depicting testing of crates and the attendant necessary equipment. Photos show a "large revolving drum", construction shop, a compression machine, what looks like a drop test chassis with crate affixed, two photos of several men in a laboratory using a microscope and several other instruments, a blueprint in progress, two closeup images of instruments including a mullen tester, a very large press used to compress pieces of plywood together, testing in action, and several other images. No doubt used as a sales tool demonstrating how thoroughly the company could build and test crates for reliable performance.
The tenth edition of Industrial Research Laboratories of the United States (1956) locates the Atlas Plywood Corporation's Department of Research and Design at 431 Market Street, Lawrence, Mass. (the same address as on the card cover of this folder), hence our approximate dating.