Bill: Are you sure about the 1960 date ? The Browning BROADway in F-1,Pigeon, Pointer,Diana,& Midas grades were not introduced into the Browning full line catalog untill 1963.I have one of the pocket size catalogs announcing the new BROADway ribs,that is dated spring 1963.I own a 1963 32in Diana choked F/F that shoots dead on that my father used to shoot crows with.Perhaps a presentation or custom shop gun may have been avaiable with a BROADway rib prior to mass production.Over the years I have owned and shot alot , two other 1963 F-1`s.Please feel free to correct me on this if my thinking is in error.KS-OKIE.