Hi Barge, and may I wish you a warm welcome to OutdoorKing. It's always nice to have another Scott Bonnar owner on board as we all like to learn new things and tinker here.
My congrats on that machine of yours. It appears to be a complete example of the Model 31 and would make a great restoration, if you care to go that way.
They are quite a rare machine these days and not seen very often.
Thanks for posting the pics.