The Model H is smaller than the Model B (see the picture),
but that isn't apparent when it's sitting all by itself.
The H has no vertical intake stack. The intake is the small
rectangular opening in the left side of the hood. But be careful!
A derelict Model B could be sitting in a field with its intake
stack missing! Early Model H's have cast iron front wheels with
the distinctive holes, as shown. Model B's NEVER have those.
Be careful again though; later Model H's had pressed steel wheels,
just like the Model B.
The serial number plate on the H says "Model H" and the major
castings have numbers that start with H. On the B the plate says
"Model B", and the casting numbers begin with B. But that's TOO EASY!
You want to be able to tell from a distance as you are driving by,
don't you? On the model B the rear section of the hood always extends
back beyond the governor housing and the magneto. On the H, the
governor and mag are sitting there on the platform, right in front
of you, as you are seated on the tractor. This is something you
can see from both sides of the tractor. The magneto is on the right,
the governor on the left (if you were seated in the seat)