Actually, I'm grateful for the posting of the later Tom-Tom. Reason is that I built the 1/2-A one in high school back in the early 1970's. Didn't find it until now. I guess it just depends on one's reference frame.

P.S. I copied the various graphic images of the photos and plans to the Dumas Tom-Tom II, thanks. From these, I should be able to come up with a reasonable facsimile of the 1/2-A Tom-Tom, which was similar to its larger scale cousin. I never built the original Tom-Tom, so the later version is or greater importance to me as it is the one that I am most familiar with. Thanks, all and Merry Christmas.