HO scale (1:87) model of a Massey Ferguson early cab designed to fit the HO scale Massey Ferguson MF750 - MF760 Combine model:
https://shpws.me/RM6m
Full assembly instructions are in the Tips and How-Tos Forum:
https://www.shapeways.com/forum/t/massey-ferguson-16-foot-grain-table-in-1-87-ho-scale-for-mf750-mf760-combine.100648/