Recently I bought a another job lot of old tools via eBay. I bought them specifically for a scribing block with a round base which I intend to turn into a tool height gauge for my lathe.
In amongst the other tools most of which appear to have been made during an engineers apprenticeship was this.

I had no idea what it was or whether it was complete (I suspected not). It turns out y suspicions were correct and it is a shop made combination universal bevel with one of the bevels missing. Someone who knew what it was point me at a photo and from that photo I have been able to make replacement parts based on the sizes of the original parts.
These are the parts that I made. The thumbnut and the retaining screw were made from a scrap large bolt and the bevel itself was a part of a piece of plate which a friend who repairs heaters on poultry farms gave me from his scrap bin.


This is it complete aside from stamping the angles on each end – the original is marked ’45’ at the enagled end