Vintage NOS 3-1/2” E-Z Mark Butt Marking Gauge in Box with Instructions Made in the USA

Vintage New Old Stock E-Z Mark 3-1/2" Butt Marking Gauge in box with instructions.  Box and instructions have some wear, but the butt gauge does not appear to ever have been used or struck with a hammer.  The cutting edges still look like they have a thin layer of factory oil/film. Manufactured by A.D. McBurney of Los Angeles, California, USA.