Cupping set question

[bjacobsen71]

Anyone have any idea who made this cupping set and what it might be worth? It does not belong to me, it came up on a machinist forum and the owner (who got it from an estate and didnt know what it was) is asking. The balls look to be in pretty rough shape.

Thanks!

 

[DON MAHER]

There were made by Jim Osborn. I have the same set, a great tool for working props!

Don

 

[bjacobsen71]

Any ideas on what it may be worth in that condition?

 

[PaulHail]

I'll take a swag at $40-50. It shouldn't be a big deal to clean it up and polish the balls, but no way it'll get top price the way it looks now.

 

[wayne middlemiss]

That particular one looks like it was made from cut down doming punches ,ie jewlers tooling