but with four opto-sensors for automatic reverse loop switching on command control layout

Model Number: 6-49861

The Trainz SKU for this item is P11488540

They snap together and stay together

fixtures and add-ons

Railhead 76-40 HO Birmingham Rock and Gravel Bunker Model Building Kit ProductID_11461451 but with four opto-sensors forThis is a Railhead 76 40 HO Birmingham Rock and Gravel Bunker Model Building Kit Condition: Factory New (C 9) Operational Status: Functional Original Box: Yes (P 9) Manufacturer: Railhead Model Number: 76 40 MSRP: $44. 99 Scale Era: HO Scale Model Type: Building Kits The Trainz SKU for this item is P12465173. Trainz Product Id: 12465173