The vintage machinist square & center finder are from the 1970s & are in good shape. They have initials carved in them because this person worked in a large machine shop in the late 60s early 70s. The steel ruler is 12" long. Tools have been kept in the machinist tool box since the mid 70s. 1. square & center finder 2.Protractor & Ruler 3. caliper 4. caliper 5. protractor, square, drill point gauge 6. Depth Gauge protractor with 6" rule 7. A Thingy-ma-jig Please read my shop policies which are on the bottom of the page of the link https://www.etsy.com/shop/LuRuUniques & ask any questions before making a purchase. By purchasing this, you agree that you have read the description & know the conditions of this item. 3-5373-3V Machinist Tool Choice Vintage From 1970S