Hi there, all,
While looking in my workshop for something else, I came across three part-machined castings. Here is a photo:

and here is the under-side view:

The thing is, I can't for the life of me remember what these are for! The name 'Dore' is no mystery but these are nothing to do with the Dore-Westbury mill. They must be for some item of workshop equipment but what? And why three?
I did make, and still have, a set of three fly-cutters designed by Mr. Throp of Dore Engineering and these must date from about the same era.
If any member can lighten my darkness, I shall be most grateful.
Best regards,
Swarf, Mostly!