KNOTT'S BERRY FARM Ghost Town Grill Menu Vintage Souvenir Buena Park California

Pre-owned and used. Has some visible wear such as edge and corner wear, tanning, and discolorations. 
There is no date listed, but looking at the prices of the menu items some of them are cheaper than what I saw on 1960s menus listed. So I don't know if it is 1950s or early 1960s.