This vintage coffee mug set of 2 features a charming nautical pattern with seagulls and is made of durable stoneware material. The mugs have a capacity of 8 oz and is suitable for hot or cold beverages. It is an original piece manufactured by Otagiri in Japan in 1966. The mug is perfect for all occasions and would make a great addition to any collection. It has a normal glass type and is of unisex design. The mugs is part of the 4 x 3 in franchise and has a coastal living theme. It is a must-have for collectors of vintage items.