Hello mickb

A warm welcome to these forums.

I'm glad another of these Supercuts is being saved.
I shudder to think the price of making one today.
These were over-engineered to last a lifetime ... and more.

A history record is available:
https://www.outdoorking-forum.com.au/forum/ubbthreads.php/topics/64309/MODEL_17_-_History_Record_-_Th.html

A lipped, or a thicker flat blade will be the go - rather than a shaver (low-cut) blade
for your residential application (I guess).

If you are having problems sourcing a blade, I can only suggest you contact
the On-line store. It may be that Bruce can help source the correct blade.

We would love to see photos as the resto progresses.
It's best you start a new topic in the correct forum to do that.

There is a lot of info on Supercuts on these forums.
Just type Supercut in the search bar and be amazed...

Help on uploading images HERE.

Hope this helps.
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Jack