It was copyrighted in 1935, and used well into the 1950's, I think. I have not tested this lamp, but it seems to be ready to use, after a battery is installed. Overall condition is excellent, IMO. The lid fits nicely, and the handle is great. Only 1 small dent on the foot ring, and minor paint loss and rust. Please use my photos to judge condition. Ask any questions you may have. Shipping via USPS Ground Advantage will be calculated from 53095, for a package weighing 2lbs. Thanks for taking a look.