OK Here goes....

I know nothing about engineering equipment. My brothers had a metal fabrication shop and they retired. I was left to liquidate their store room. Stuff they acquired but probably didn't use. I found the information below on a website. Mine is exactly the same but less scratches. Those who use these things will know what to do with it. Priced to sell.

it weighs nearly 7lbs in the wooden box.

The Mercer Series 273 Measuring Fixture is a precision tool designed for measuring and fixing tasks in a professional setting. Made by the reputable brand Mercer, this measuring fixture is manufactured in the United Kingdom, ensuring quality craftsmanship. With its model number 273, this product is specifically designed for accurate measurements and reliable results, making it a valuable addition to any workshop or industrial setting.

Disclaimer..I cant help with details see pictures. 

All sales are fianl

No returns