For my 1974 Falcon grocery bike, looking for something I have not seen in a long time (1970's?); tried doing an on-line search but do not know what it's called. Basically a triangular plate a few inches long, with three holes "at the corners". One goes through the rear brake mounting bolt, the other two through the forward most part of a rear rack; this prevents the rack from sliding down the seat stays. Any ideas on what it was called, and/or where to get one?

I am about ready for a first test shopping for groceries, I have the rubber-isolated "P" shaped straps holding the front end of the double baskets and tightened down until "no more", and it might hold.

Thanks to another thread here, I was reminded of the Blackburn adapters for Campy dropouts w/out fender eyes. I just got and installed a set, nice but the lower end of the baskets' struts are wide, intended to have the axle pass through, are a bit wide and foul the QR skewer. As the struts are a bit short causing the baskets to slope down from the horizontal, I'd like to figure out how to fabricate extensions to them or altogether all new struts to level them out.

Sorry, still getting upload-failed message so no pics of the bike.