The year is not enough by itself. If you can identify the caliber, the barrel length, the serial number, whether it is single or double action, and any other markings you might find on the gun (patent dates, for example), that would probably be enough to go on.
Best of all, of course, would be a photo or two. You have whetted our appetites now, and you are morally obligated to follow through with an image!
