Some Info Gleaned from Fast Fighting Boats, p.26-31
CMB04, as model, was Lt Agars' Boat, on 17th July 1919, entered Kronstadt Harbour & 4 Russian ships, inc 2 warships were sunk, at the cost of several CMB's. 56 were built, mostly 1917, by Thornycroft at 55' length. CMB02, currently on loan from Imperial War Museum, is 40' length.
I don't know any more on the MTB71, as there were far to many planes, tanks, MV's, models to see & photograph......
Jon UK