This is a Vienna regulator-style, unmarked German 8-day clock.
It has a spring-driven movement, with fine quality gear work and machined pinions. 
Upon disassembly, I noticed that both main springs had hairline cracks at the hole or barrel end. I annealed the spring ends and cut off the defective tips and reformed new hole ends.
Mainspring Failure
I always check mainsprings for fractures such as this whenever I remove the springs. Mainspring failure is always a recipe for disaster. If a spring breaks under load it can potentially render a movement unrepairable if gears and pinions are damaged…well worth the time to perform some preventative maintenance.
SYNC-hronicity
This is one of those clock projects where, during the reassembly, I was very lucky in that after cleaning and assembly, the striking train was exactly in sync! It was not even necessary to adjust the wheel for the hammer lifting pins!!
I wish I could be that lucky with the lottery!!
Porcelain two piece face and heavy lead backed pendulum with grid iron temperature compensation.
my uncle died last year leaving over one hundred clocks he refurbished..everything from calendar clocks, kitchen clocks, (one even floor to ceiling).i know nothing of clocks but my cousin sold a few with many more left.