Vintage “ALEMITE PENNSYLVANIA MOTOR OIL” PORCELAIN ENAMEL SIGN 30″ x 24″. ALEMITE PENNSYLVANIA MOTOR OIL. Porcelain Enamel sign is in a good condition & decent for its age. Its a rare sign and very hard to find. Some wear and tear as you can see in the pictures. It is quite heavy and durable. Size : 30″ x 24″. Not sure about reproduction or original as the sign has been procured lately. Please refer pictures for more details.