Image Item No. Description By  3172  Plate, Modified 1 x 2 with Pin Hole on End Catalog: Parts: Plate, Modified 1  3170  Plate, Modified 1 x 2 with Tow Ball on Ends Catalog: Parts: Plate, Modified 1  4304  Plate, Modified 2 x 2 x 2/3 with 2 Studs on Side - Hollow Bottom Tube Catalog: Parts: Plate, Modified 28