DCC Concepts ~ Back to Back ~ TT or HOn-3 (Standard) 10.24mm ~ DCG-BBTT
Brass Back-to-back gauge for 12mm gauge track – HO-M, TT or US Narrow gauge (Meter or US 3’0″ gauge, HO Scale. set to NMRA standards)
Brass Back-to-back gauge for 12mm gauge track – HO-M, TT or US Narrow gauge (Meter or US 3’0″ gauge, HO Scale. set to NMRA standards)