This clock is a foundling which we adopted from the local landfill in June 2002. It is unclear why it was discarded other than the pendulum was missing.
I inspected and oiled it, then made a crude pendulum from a wood dowel with a brass hose fitting as a weight. By drilling holes in the dowel, I adjusted the length to verify that the movement ran accurately.
Once I was certain that it ran properly I purchased a standard 4.5 inch pendulum from LaRose, cut the stick to length, and it has been running since. It does still need to have the tick adjusted since it isn't even when the case is plumb -- it is about 1/8 inch off vertical now to get it to sound right (something to do when the weather cools down).
This isn't a real Regulator; it was made in Japan, apparently by Little River. The movement seems well made and the hour chime is pleasant. It needs winding only monthly.