Image Item No. Description  737a  Plate, Modified 2 x 4 with Train Coupler Open for Magnet Catalog: Parts: Plate, Modified  3058a  Plate, Modified 6 x 16 with Motor Cutout Narrow Catalog: Parts: Plate, Modified  3058b  Plate, Modified 6 x 16 with Motor Cutout Wide Catalog: Parts: Plate, Modified