Page 644 - Chinese SIlver By Adrien Von Ferscht

SHING WO [aka: S.W.]
Hong Kong
circa 1900-1935

All Shing Wo silver appears to be marked as .85 purity on
all items created solely under the S.W. silver mark.

However - Shing Wo also manufactured silver items for
other retail silversmiths such as Wang Hing; the selection
of flatware below carries the Wang Hing mark and the
S.W. mark.

Images courtesy of Bonhams, UK

http://chinese-export-silver.com
Image Library Archive