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Advise to live by! :roflmao

A 70 1/2 should be a 5/8 roundpoint? May have something like this 72 1/2. If the front scale is intact, that's a good thing.
A rear scale can be found/modified.

297569

If they are...

If they are hard rubber or Bakelite, I would say forget it.
A picture?

I seem to have some scales around.........The blade should be worth it....