Bit appears to be Mexican made. No stamping on the inside of the shank. Outer rivet on shank has a few letters that you can barely read. Most of it is worn off. I believe it was what you see in the last photo. We have had this bit for over 45 years. It has been hanging in our tack room and needs a home. It has a gold tone to it and does have a copper mouth with cricket. It was my dads, and I have no way of finding out anymore information. Please ask questions if needed as I do not accept returns. See photos for condition. Sold as is. Please pay within 2 days of purchase. Thank you!