Found at my parents' house. This is a set of four 500ml Tupperware tumblers, still unopened in their original bags. They have commemorative logos. Brand new, unused. My family purchased Tupperware during the era when it was made in Japan (Okazaki factory). We stopped using it when production moved overseas, so these are definitely from the rare, Japanese-made period. The lids from that time were exceptionally good and absolutely leak-proof! For those looking for items from that good old era. The logos are slightly faded in places. Diameter 8.1cm, height 16.9cm.