100.00 Antique Wilson 12 Gauge Side by Side Percussion Parts Gun Oshawa / Durham Region May 6, 2024 - 12:26 PM 3screwsloose NO TRADES. Appears to be a 1860’s percussion side by side shotgun approximately 12 gauge. Stamped “WILSON” on the side plates. Hammers move, one has tension, but no cock and click.