In question is a pair of 19 cm long spoons weighing 71 and 74 grams.
From perusal of this excellent site, the hallmarks seem to be of the assayer Edward Brandenburg, 1856, 84 zolotnik standard, and city mark of St. Petersburg. I have been unable to identify the maker CAS (which I think could be Latin or Cyrillic).
While I have no reason to doubt the authenticity of these spoons, I look forward to hearing experts’ opinions about them. If they are authentic, I would be grateful if someone could provide information about this pattern, which seems to be rather unusual given the predominance of the fiddle pattern in 19th century Russia flatware.
Thank you in advance for your comments and for sharing your expertise.



