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

  After further research, the boiler is 5 1/2 cm but the slide
valve makes it, I think, a 4106/5.5.  The 4105's I saw were
all oscillators.  Am I correct?

Wayne

This is a Maerklin 4107/5 1/2 from 1909 with sight glas and drain cock.
Value is from 80 to 400 depending the condition. After 1919 this size was
discontinued. They only made 6 1/2 and bigger with fire door.
Very nice vertical and when completed a good collectors item.
Congrats, Arnold