I supplied Ed Bommer with detailed photos during the Weaver R&D stage for this model. Two remaining M-53’s are at the museum in Parish Fl.
Additional photos are on my ODDS N ENDS album link here - https://steves3roscale.shutter...m/pictures/5093#5067
Thanks for posting the Weaver ad. It should clear up any misperception for the uninformed sellers and buyers.