Dia.: 7,3 cm - H.: 4,3 cm (the cup)
Dim.: 9,4 x 9,3 x 7 cm (the box)

Provenance:
- A British private collection.
- Acquired from the Tokyo Art Club, Japan, in the 1970s. (by repute)

Ref.:
- Sotheby's, London, Sept. 21 2021, lot 193 for a similar example. (sold GPD 47.880 ) (link)