Saw this at a flea market with other kitchen tools and do not know what it is. The end of the tool that is pictured is attached to a wooden handle, not a gear or some other mechanical attachment.
Update: I'm still Google searching periodically. Other ideas include parts for a cookie/pasta press.
This is what the handle looks like:
(source: bullbbq.com)
I think I'm on a lead with these grill scrapers.