OK... Got 3 of um. First is an A Ser # 00382 Black bears, no strut, metal limb locks and a large hole for side plate adjust (Maybe 3/8") When I had this one stripped down it was evident the hole had been drilled off location and it was plugged and moved.
Second is another A ser A06735, raised button, plastic locks, no strut and the same 3/8" hole to adjust the side plate.
Last is a B Ser # B04330.. No strut, raised button, plastic limb locks, and a smaller side plate adjust hole,, maybe 7/32.