Recently bought an Ingraham 4-column shelf clock (17" x 10.75" x 5"); not shown in any of my old Ingraham catalogs. Has a good label with patent date of Dec 22, 1857 (for the door design?). The 8 day movement is unsigned but someone wrote N. Pomeroy on it! I hope that was done by some knowledgeable and helpful collector and not by some evil deceitful swindler.My questions are: what Ingraham model is this? Approx age? Is this really a Pomeroy movement? Any information would be appreciated.