David Andersen ring in sterling silver

with three amazonites probably from around 1960. The ring size can easily be changed because the ring is "open".

Goldsmith David Andersen founded his company in Christiania (now Oslo) in 1876 and the business is still active.
The ring is stamped D-A 925S - Norway Sterling and also features a weight with two bowls, which has been David Andersen's logo since 1925.

Ring size: 53