ME26S10 single drive 4 wheel truck, 26mm wheelbase, 10.5mm wheels.

Fits the following models amongst others:
KW Trams - KW001, KW001a, KW002h, KW006e, KW010, KW012, KW012a
Tramalan - TA1 Bristol 4 wheel open top, TH52 Australian Birney
ABS - R420 LCC Snowplough, R421 LT stores, R422 LT snowplough, R423 LCC open top B or C, R424 LCC Baclony B or C, R425 LCC enclosed B or C