4 VINTAGE RETRO FUNNY GLASBAKE ? STACKING MUGS NOT FIRE KING.PLEASE LOOK AT PICTURES.SHIPPING 3 LBS COST TO YOUR AREA..I DO COMBINE SHIPPING TO SAVE ON POSTAGE.PLEASE TAKE A LOOK. NO MARK ON BOTTON I BELIEVE THESE TO BE GLASBAKE BY JEANETTE GLASS CO MUGS.2 CURLING MUGS 2 OFFICE MUGS