$310.00 Post & Co. American Student Lamp. This original Kerosene oil lamp has been converted to electric. Patent reads April 24, 1877. Produced in Cincinnati, Ohio. Made of Brass with side arm which holds a single dark teal ribbed student shade. Original patina and in Good working Condition. 13 1/2 ” W x 20 3/8″ H x 5 1/2″ (Base).