Imperial Russian Water Rescue Society Badges made made by the St.Petersburg workshop "НБ"

See also https://asiamedals.info/threads/red...-made-by-the-st-petersburg-workshop-nb.30700/.

Gold badge type 1872.

Silver, gilt, enamel.
Size 46 mm.
Weight 26 g.

Marked with a St. Petersburg assay office silver hallmark "84+anchors" from 1882-1898 time period and marker's mark "Н.Б" /unidentified workshop/.

Marks.