I have a few I made out of brass angle (from 5:1 through 8:1) ..
These have the important advantage of running square across the top.
They are also easy to make in clear perspex (use superglue to stick together) ...
A small sliding bevel works best on the outside marking at the end of the board ..
That is a nice, pretty Vesper bevel, but these Stanleys are also great ...
Here is a complete kit, one I take to Woodshows or workshop demonstrations of joinery. Much of these I either made or purchased used on eBay ...
Stanley knife for scoring, Starrett 12"/300mm combo square, Starrett mini double square, Starrett small dividers, Shinwa sliding bevel, Veritas cutting gauges (mini and full size), dovetail gauges (5:1 and 7:1), and a driver holder with three driver bits and an awl.
Regards from Perth
Derek