I've had this neat little #00, complete with a cast iron skeleton framed dial, for a couple of years now, and am getting ready to get ready to start restoring it. These are similar to the number 0s, but have brass plates instead of iron, feature a slightly simpler design, and are a bit smaller. I think they were used in street clocks as well as one dial tower clock installations like this one. I've been hoping to find out when it was made and to whom it was originally sold (it has always lived in Rhode Island) but since the Howard records that we have on line are not complete, this one doesn't seem to be included. The serial number, 3789, is around a thousand numbers higher than the the 2nd tower clock book shows. This book goes up through 1905, and includes numbers up into the 2400s. So the question is, is there another way to determine the date of manufacture, short of interpolation? I suspect it was first installed around 1920, in a textile mill in northern RI, but I would like to confirm that. And the greater question is, where are the remaining Howard ledgers?