You are purchasing a SUPER NICE circa 1966 Houston Astros Guy's Potato Chips pinback.  This is a great vintage button!  Button measures 7/8 inches.  Has a stick pin back.  Brown, green and yellow colors are bright and vivid.  Pin is dated 1966 on back.  Pin shows just a touch of surface wear.  Pin grades NM!  NICE vintage Astros item!  Buyer pays $4.00 shipping.  Shipping combined on multiple lots whenever possible.  MN residents add 6.875% sales tax.  Thanks for your purchases!  Please check out my Ebay store for more great items!