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Thank you for the information. The pendulum hanger is interesting, a series of small notches to allow it to be spaced nearer or further from the back plate.Jim, it looks like Russian regulator clock to me. Borgå or Borgo (Борго) in Russian or Porvoo in Finnish is an important old town in the Grand Duchy of Finland, province of the Russian Empire at the time. Most of finnish clockmakers in those days used to start their profession as journeymen in St.Petersburg, the capital of Russian Empire, so clock case design and movements they made were all in the Petersburg style. So was Gustaf Nyberg, who is listed working in St.Petersburg in 1831-34.
According to Gunnar Pipping "Urmakare och klockor i Sverige och Finland: historisk översikt jämte förteckning över personer som verkat ...", Gustaf was born in Pojo, in southern Finland in 1807. He began his career as an apprentice to a well-known clockmaker C.G.Wiberg in Ekenäs in 1825, then worked for another famous clockmaker H.Ahlbom. Worked in St.Petersburg and had a trade there in 1831-34. Later worked for С.Ch.Elfstrom in Viborg in 1835-38. Most probably it was 1840-50-s when he used to work in Borgå, but in the book there is no information regarding that.
He passed away on July, 20, 1882.
The clock case has strong rococo influence, which was popular from the mid-1840-s to 1860-s. I would date it c.1850. Jim, if possible, I would really like to see the movement, at least from the back. Thank you in advance!
Best regards,
Oleg
Thanks for the photos! Yes, spacing notches are quite typical for clocks of St.Petersburg area. Your clock is intetersting having two pendulum hanger rods, which is very unusual. Could you please also make some photos of the pendulum, if possible, thats something new to me.
Best regardsm,
Oleg
Here are a few details of the pendulum. The attachment to thependulu mounting in the form of a T is new to me.