Nice collection, Elwyn. I especially like all the Lockheeds. All those various Lockheed planes were made in the same fuselage mold. It was a big old concrete half-shell. Laid up by hand with lots of strips of thin wood. The two shells then glued together.
Some time back, they were digging up a parking lot in Santa Barbara, CA and found the fuselage molds buried. I think they were destroyed because nobody wanted them. Too bad.
Floyd