Hi William, and thanks for posting the pics. As we suspected it is the earlier version and has the old style (though faded) Scott Bonnar sticker on the motor cover.
From my observations, I would guess that it has a 10 blade cylinder reel; that from the pic, looks like it could do with a sharpen.
I do have a safety concern....and that is the insulation (the plastic) on the upper part of the handle appears to be very patchy...and being an electric machine, this is important for the operators safety.
There is a repair kit available...Click
HERE It does look in good nick for its age and would restore nicely if in future you wish to go that way.
