One folder of drawings without model names, but dated and with file #s organized by date. File #s could be compared to other sets in the case that something seemed to be missing from the other set. File numbers include 252, 433, 539, 539R, 5341, 5390, 5398, 5454, 6401 (63178), 6404 (64183), 6442, 6485 (5683), 6486 (5683), 6492,