Compliments of the season......a celluloid advertising Christmas pinback. Dating from the 1940's, perhaps earlier,  the pin features the head of Santa in the center.  At the upper edge, the words "For Christmas Gifts". 

Printed under Santa "Lobel's.  The advertising pinback was made by the M. Pudlin Co. Inc. MNFRS of Badges, Buttons and Advertising Novelties, 286 5th Ave. New York, N.Y.C. 

Size is 1-3/4" in diameter.  Condition is very nice.