This is a vintage souvenir insulated plastic mug by Steditemp. It is a souvenir of Sydney, Australia. The base is marked Steditemp Insulated Ware Made in Australia Newlyne Mfg. Co. Pty. Ltd. Division of J. Glaser & Co. Melbourne. The mug is 3" wide and 4" tall. It is in excellent condition.
Sydney Australia Souvenir Insulated Plastic Mug Steditemp