Vintage heavy, large and very nice 7 7/8”diameter brass Marshalltown Iowa hydraulic gauge made in the same. Made in the USA, Bushed Movement on the face from 0 to 100. The gauge is in excellent condition untested, face is excellent and brass is excellent with no scratches or dings. There is dirt inside the gauge. Great for a steampunk project. The face and brass housing diameter are 7 7/8” in diameter , 3 1/2” thick and the face if the gauge measures 5 5/8” inside the brass. The connection fitting is 1/2” od. The gauge weighs 5 pounds 10 ounces. Please review all pictures as they are a large part of the description. Being sold as is. Thanks for your interest.