This universal mounting plate, no longer made, has a Losmandy compatible dovetail on the bottom side. Its primary purpose was to mate the 90mm ID WO Megrez clamp rings, for which 4 holes are provided. The plate however has a total of 24 holes for various combinations of tube ring and mount possibilities making it a universal plate.
The black anodized and aluminum finish is like new and is as fine as Astro-Physics' hardware. It is 7" long and 4" wide, not the same as the current plate, but has the same dovetail.
$50 shipped in CONUS, paypal encouraged, no photo.