Hi kymbom2g,

You're welcome and thank you for the great, revealing, photographs.
For one thing, this is a 'special' 33 known as a Lawn King.

These extended the life of the 33 beyond 1968 and into the early 1970s.
These were sold contemporaneous to the Model 45.

The handle is painted tubular steel; the original 33 was flat steel.
Significantly, this has a Model 45 clutch assembly but with what I think is
a spacer between the clutch cone and plastic clutch washer. The primary clutch
lever faces forward; the 33 faced backward.

We'll have to wait and see what the experts think about this.

All very interesting.
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JACK.