This section lists O scale detail parts in lost-wax brass for diesel and steam locomotives. The animal figures—beaver sitting, beaver swimming, eagle, gopher, and mice—are suitable for scenic details on layouts or dioramas, and can be glued with ACC or epoxy. Antennas (OA1, OA3, OA4) are fine wire or cast parts; drill a #80 hole for mounting. The OA2 anti-climber is a drop-in for SD and GP hoods, while OA6 is an air conditioning unit for passenger cars. All parts are unpainted; clean with solvent, then prime and paint as desired.

The bell and brake wheel items (OB1, OB2, OB3, OB4, OB5, OB6, OB7, OB10, OB11) are for diesel and steam locomotives. Low hood and high hood bells suit various EMD and GE units; N&W and Southern bells are for specific prototypes. Brake wheels and stands are for cab or hood mounting. OB10 coupler bumpers are for draft gear boxes. These brass parts require careful removal from sprues, filing of flash, and drilling for mounting. Use a jeweler's saw and files. They are suitable for O scale (1:48) models, including brass and plastic kits.

The cast urethane kits in this section include a variety of detail parts for O scale. These are multi-piece kits that require assembly, cleanup, and painting. They are ideal for scratchbuilders and kitbashers. Parts are cast in gray or black urethane; wash with dish soap before gluing. Use CA or epoxy. The kits cover common details like antennas, bells, and air conditioners, but also include animal figures for realistic scenes. They are not to scale for any specific railroad but are generic enough for freelance or prototype modeling. All parts are for static display or operation; ensure moving parts are free.