My Dad used this back in the mid 60s when he first started on the railroad, before advancing up to being an engineer. This was brought home among many of his other tools upon retiring after 30 plus years. This hung out in the garage for a long time. Theres a makers stamp which I believe is from Atha Tools. Made out a high quality alloy which prevented chipping, mushrooming, and cracking. Has a awesome patina throughout the handle and the hammer head. Weighs over 10 lbs. Measurements included in pictures. Any questions, more pictures, message me. SOLD AS IS, NO RETURNS. UNSURE, PLEASE PASS ON IT. Thanks for checking this out.