A silver lantern and boat

Set of two Japanese sterling silver (950/1000) casters in the shape of a
traditional Japanese paper lantern, called a chôchin 提灯, and a Japanese style traditional boat.
Both with an embellished crest 紋 (mon) depicting three hollyhock leaves in a circle 丸に三つ裏葵 (maruni mitsu ura aoi). This most famous bearer of this crest is the Tokugawa family.

Both marked ‘Sterling’ and ‘950’ on the bottom. A higher grade silver than the usual 925/1000 sterling silver ratio.

Both are in a very good condition. Please look at the photos for reference.
Late Shôwa-period.
Size lantern:
Height 6.2 cm, Width 3.3 cm, Depth 5.2 cm.
Weight 27 gram.

Size 2:
Height 5.4 cm, Width 2.3 cm, Depth 8.6 cm.
Weight 25 gram.