Antique Russian? Caviar serving bowl marked HB

[Sdcookie2]

Hiya, tests as silver but only mark is the HB, anyone have any ideas?
Thanks, Steve

[Qrt.S]

Not Russian silver, could be plated, but.....? How was it tested? Did the result show 100% silver?

[silvermakersmarks]

If you've only done a surface scratch test it is most likely electroplated especially as there is no indication of silver fineness. The HB mark puts me in mind of Henry Bourne, a Birmingham (England) silversmith and plater. Some of his electroplate marks are shown here.

Phil