These two sake cups are unusual. The cup on the left has three Japanese traditional symbols that represent "long life", crane, turtle and pine (or evergreen).
The one on the right has crossed Japanese flags. Most cups from this era that I have seen have one Hinomaru and the other is the flag the Japanese army and navy used in WWII with the red sun in the middle with red rays. This one has both Hinomaru flags.
The couple who runs the shop are retiring after over 20 years.
No mark.
