1969 No. 490, 6c Curling, on an Elliott-Marion commercial First Day cover. Elliott-Marion was a drug manufacturer who used first day covers as a median to advertise their new products. The cover has been forwarded (with a "DIRECTORY 13" straight line added), and then returned to the sender (Pointed finger "RETURN TO") added. The cover has been placed on a black background, to better show the edges. Pay only .50c postage for each additiional item purchased. Purchases of more than $100 must be sent by registered mail. Please wait for an invoice. Checkout my Ebay store for more exciting stamps and covers.