Offered is the Duplex Receptacle by Monowatt Electric Corp. The receptacle is of Bakelite construction. It is a polarized type-no ground pin. Its offered in its original packet, which is a little tattered on the back-the front looks OK. Some rust on the secrews. A little dust from storage. Part. No. 154.  Probably 1940's vintage. Extra Large Binding Screws, Heavy Duty Contacts.  Pick up the receptacle for replacement use or for your collection. Fits standard size box. Mouse over the photo images to zoom in. NO RESERVE!! Thanks for looking.