If you can post a picture, odds are very good that someone will know the manufacturer. MANY single shots were made by the main manufacturers (H&R, Ithaca, Stevens, and Iver Johnson, among MANY others) and sold thru distributors or mail order houses under entirely different names--literally hundreds of names. Many of these guns have little information stamped on them--actually I'm quite surprised that yours has a serial number, since they weren't required before 1968 and relatively few singles have them (my two Winchesters and one Stevens don't for example). So the best guide to "who made it?" is often "what does it look like?"
