The electrically activated LGB signal is equipped with a moveable signal arm and signal lights

Here is a Lionel 6-12729 O Operating Mail Pickup Set from the early 1990s

Diecast metal trucks with operating coupler on rear of tender

40' Flat Car

bright LEDs with integrated multi protocol decoder (Motorola/DCC)

MTH 30-73489 O Nickel Plate Road RailKing 3-Dome Tank Car DwDetails-1.65-1.10-13.00-6.00-4.00-2 The electrically activated LGB signalThis is an MTH 30 73489 O Nickel Plate Road RailKing 3 Dome Tank Car. Features: Intricately Detailed, Durable ABS Body, Colorful, Attractive Paint Scheme, Metal Wheels and Axles, Diecast 4 Wheel Trucks, Fast Angle Wheel Sets, Needle Point Axles, (2) Operating Diecast Metal Couplers, Detailed Brake Wheel, Separate Metal Handrails, Near Scale Proportions, Unit Measures: 10 1 4 x 2 3 8 x 3 9 16, Operates On O 27 Curves. Condition: Factory New (C 9)