eBay

4x sets BHE N gauge BR MK4/B4 coach bogies + wheels - for Mk2 coaches etc

This is a lot of four unused sets of BR MK4 coach bogies, produced by BH Enterprises. Each set contains 2 bogie frames moulded in black plastic, plus plastic wheels and etched brass close couplers. I assume they're intended to be fitted to Farish coaches using the existing attachment pegs (no pegs/pivots are included with the bogies).
The MK4 bogies were fitted as standard to BR Mk2 coaches and were also fitted as replacements to Mk1 coaches from the mid 1960s onwards, so would be suitable for a layout set in the early BR Blue era.

 photo MK4bogies1.jpg

 photo MK4bogies2.jpg