Hi: Scott S... I was just browsing over at Vintage Trailer Supply (its a dot com co.) out of Montpellier Vt. They list
Boler window operators in their window hardware. I have bought from them and they ship via U.S. Post and 100% guarantee their stuff. Wether the operator will fit a Surf Side is another matter!!!
VTS
Alf S. North shore of Lake Erie