Up for sale is a fantastic piece of mid-century American industrial history: a vintage H. Hoffman Co. Locksmith Graphite Puffer Gun/Dispenser. Manufactured in Chicago, Ill., this hand squeezed rubber bulb was designed in a unique, artillery shell shape. Locksmiths filled it with dry powered graphite and squeezed the rubber sides to puff a fine lubricating mist into sticky keyways and locks.{NOT RECOMENDED FOR USE DUE TO RUBBER CRACKING, FOR DISPLAY ONLY)