Campbell Scale Models HO Scale Deck Plate Girder Bridge WOODEN Kit #765 -650 See photos for condition. The Campbell Scale Models HO Scale Deck Plate Girder Bridge Wooden Kit #765 -650 is a vintage model train accessory designed by the renowned brand Campbell. This kit is specifically made of wooden material and is in a 1:87 scale, perfect for HO gauge model railroads. With intricate details and a classic design, this bridge kit is ideal for model railroad enthusiasts looking to add a realistic and authentic touch to their layouts.