Interestingly, about a day or two after I first Posted this "Wanted" Ad, both of the Sellers that I had contacted three times, got back to me. Either it was coincidence, "third time is a charm", or maybe they both read our Forum's Wanted Ads, but it really doesn't matter. The main thing is that both got back to me with the dimensions. They both agreed with all except the length ; one measured 3-1/4", the other 3-3/8". Both measured the width at 5/8" and the thickness as 1/8". Only one measured the "Lift-the-dot" stud length, and he came up with 1/2".
Attached are pictures showing the measured dimensions for any future searches.
Bob