You do manage to find some obscure cars. If it wasn't for Bev Kimes & Austie Clark's Standard Catalog of American Cars 1805-1942, I'd never have found it, but there it was on page 1291. It's the 1915 S.R.K. roadster, built in Detroit, Michigan - if in fact it ever made actual production at all. 1915 is the only year listed for it, and it was gone as quickly as it appeared.