Office of Steam Forum for Model & Toy Steam Gas & Hot Air Engines

  The boiler's bung-hole is the same as the filler
hole in the top f the boiler.  That screw-plug is
6mm, or just less that 1/4".  Since this is German,
and the marks lie up to 6mm perfectly, I'd say
it is 6mm.  The threaded portion of the top plug
is about 4mm and I count 7 or 8 threads.  I'm
off to a hardware store today to see whats up and
check it on their thread-checking display board.

  But, to bring up an old question, 'plastic knobs'
on the throttle and whistle?  Can they be original
and from the 30's?  Just seems a bit incongruous.

Thanks,
Wayne