Hello. I purchased an Ansonia clock (Knight model) with an open escapement from a reputable seller on ebay (this is the second clock I've bought from this seller). It runs beautifully and I believe was cleaned and oiled prior to selling. It has both the regulator arbor at the 12 o'clock position and an adjustable pendulum bob. I've turned the regulator arbor to the slow position repeatedly. I've turned the arbor while looking through the back of the case and it seems to be working. I've tried turning the arbor in both directions. I turned it 100 times toward "S" in the course of a week (no exaggeration; I counted 25 full turns each time over four days and tracked the results). I've got the pendulum bob down as far as it can go. The design on the pendulum bob matches the ornate patterns on the clock case so I presume it is the correct pendulum assembly for the clock. It has driven me bats that I can't slow my clock down. As far as I can tell from the sound it is in correct beat. I'm entirely at a loss.