You are purchasing a set of four VERY NICE circa 1970's Minnesota Twins glass mugs.  These are a very cool vintage item.  I believe these were filled with peanuts and had a lid.  Mugs measure about 7 inches tall.  Mugs are made of heavy, clear glass.  Mugs have classic Twins logo on front side of mug in blue and red.  Mugs have no markings on back side.  Mugs show little of any wear.  No chips, scratches or cracks.  Print is very nice on all four.  Overall, mugs grade NMMT!  Very cool vintage Twins items!  Buyer pays $15.00 shipping.  MN residents please add 6.875% sales tax.  Shipping combined whenever possible.  Thanks for your business!  Please check out my ebay store for more great items!