This factory manufactured trigger plate assembly - 3rd variation is for the Iver Johnson Sporting Goods Co. Knox - All hammerless double shotgun in 12 gauge and is in very good condition exhibiting a grayish brown patina with light wear.  Note: This trigger plate assembly requires the safety rod with wire.   (file photo)

Note: Iver Johnson shotguns with the following serial numbers have been observed with this part:

12 gauge: 190946