Found this interesting bevel gauge the other week, it looks like a usual brass and rosewood marking gauge until you look at the locking mechanism,
(Which I think is rather sleek compared to the offering's of stanley)

Apparently the inventor of the tool sold the patent to Star Tool Co., however what I have here only has "L.D.Howard". on the handle


Link:
https://www.datamp.org/patents/displ...=UT&country=US

Here's Some Photos:

IMG_4080.jpgIMG_4081.jpgIMG_4082.jpg


Does anyone know anything else about these gauges?
Are they rare?

Thank you