Request to Identify Markings on Cocktail Shaker

[CuCan]

Hello,

I have this cocktail shaker and the maker's marks on the bottom are a bit worn. I can't figure out who the maker might be. Any ideas?







Thanks in advance.

Curti

[dognose]

Hi,

Roberts & Dore.

See: https://www.925-1000.com/silverplate_R2.html

Trev.

[CuCan]

Thank you!