Here is the 1st engine, the R.P.M. Gauge Engine.
Some interesting facts on this engine:- The shaft isn't screwed to the wheel - it is just slid onto a peg!
- It has a throttle control! Which is a long screw that's simply tapered at the end (it goes into the "collar" of steam line).
- It has the earlier B-30 type whistle base (rounded) and topper.
- The sight glass slides into the upper & lower fitting, again like a earlier B30. Newer models the slight glass just "hovered" just above the fittings.
I really like this little engine - I wished they had kept the sight glass fitting the way they designed it on this one, as you can use O-Rings to reseal it. Also, I am surprised how well the throttle works, as it is really wiggly/lose!