Cool! I wonder how many of us built at least one of those kits when we were younger? I'm guessing a lot of us!
I built the Thomas Jefferson version, which had the one side in clear plastic. I currently have (after years of searching), The TJ kit (in original Renwal box), an original George Washington (in original Renwal box) and the Ethan Allen ((also in original Renwal box, which is in very good shape). The fit on these kits was fair at best, and the plastic decks & bulkheads were thick and often had to be forced a bit. Also, the engineering spaces are devoid of a propeller shaft and gears from the turbines. But they were a lot of fun to assemble and paint in the old Testor's Primary Colors of the 1960's!