I have just two BR Mk1 coaches by Bachmann Brass/Sancheng remaining. These are in plain brass in original boxes, unused. They are on BR Commonwealth bogies of the type introduced in the late 1950's (the example below is a Second Open shown on BR Mk1 bogies, the Commonwealth bogies are more detailed).  The last 2 coaches I have available are as follows. Second Open (SO), and Second Corridor (SK).  The price is £180 per coach.