Unless somebody actually has a Paterson revolver in the fust place, IMO you are unlikely to find one going spare. If I had one, I'd lend it to you like a shot, because us BP shooters are kindly folks, in spite of one a few weeks ago at our club - owner of an original Starr revolver - who borrowed my Pedersoli nipple key [that's the model that costs almost the same as a revolver] and inadvertently neglected to hand it back.

My new one arrove this morning, with a Krank's catalogue - but alas, there is no mention in it of a Paterson-style nipple wrench. I'm going over to our local gun store tomorrow, where there is a Paterson for sale. Do you want me to see if they can loan me the wrench? I HAVE spent many 1000's there over the years, and they just might be moved by your dire straits.