Stands for Winterhalder and Hofmeier. I do not know much about clock movement, I do not know if the movement is working properly or if it's calibrated.This will need to be brought to a clock shop to be serviced. I don't know much about this clock - I would recommend a professional cleaning and Tune up. Well known German clockmakers during the mid 1800s to mid 1900s. There are a few scuffs and scratches, it is very good condition for its age. The very top tip of one of the finials is not there.