This is a vintage straight peen hammer head. It weighs 22 ounces, and it is marked HELLER MADE IN USA, and has a horse logo. It measures 4-1/2" across, and the round face is 1-3/8" diameter.
This ham mer has some dings and nicks, but the striking face is in excellent condition. It has no owner markings. I will be glad to answer questions.Shipping is $5.85 to the US only. Satisfaction guaranteed. Return for a full refund if you are not satisfied.