Lacquered wood cup with the UK flag and the Japanese flag.
Inscribed 'Return from Korea Commemorative, Yabuki'.

I imagine this refers to the Anglo-Japanese Alliance of 1902, where Japan was given a free reign in Korea
and parts of China. This alliance was renewed twice, the latest being in 1911--right after the annexation of
Korea in 1910. So perhaps this cup is from the later date.
Assorted flags,
page 3
This is from the battleship Katori.
The design is really nice: An English white ensign Navy flag
(upside-down) and a Japanese battle flag. Between these you can
see an Imperial mum and a propeller.
Inscribed 'His Majesty the Crown Prince, Trip to Europe
Commemorative, Aboard the Honorable Warship Katori'.  On the
base is a personal name: Hasegawa.

This trip was in 1922.
The flag to the left is the Japanese Emperor's flag. This rarely
appears on cups.
Inscribed 'Imperial Guard.'
Nicely hand-painted Japanese and American national flags.
Inscribed 'Cross to America Commemorative, Yoshimura.'
Rare military cup with the Japan Post flag. Made for a military postal worker?
Inscribed 'Siberia, Victorious Return Commemorative, Konishi.'

No chips but it has a T-shaped crack.
Diameter: 7.5 cm
Item #176c
Price: 3150 yen

sold