Festiniog Railway Granite Wagon No.377 , converted from 3Ton Slate Wagon.
BM2 = Brown Marshall second series
UB = Unbraked
SC = Sprung Coupling (Note the model is unsprung)
Use Couplings CPL12, secured with 14BA bolt. For Axleboxes, use AB01. For timbering, see my website or scratchbuild.(Axleboxes and couplings in 3D printed Resin also available on the website -
https://shop.coastlinemodels.co.uk)