Barometers are often "cross over" pieces of interest to clock collectors. In fact, barometers were also products offered by clock makers. A barograph or recording barometer records the barometric pressure over the period of a week on a paper record attached to a drum which at least in earlier models was rotated by a clock work mechanism. More recent ones now use electric movements and even quartz movements to drive the drum. Here's an article from the Bulletin about barographs: http://docs.nawcc.org/Bulletins/2000/articles/2002/339/339_429.pdf I thought I would post a barograph made by what appears to be an important London maker. I find it a rather attractive object, too, and that is what really appealed to me. The case is mahogany with beveled glass. The pix don't really indicate how wonderfully compact it is: The drawer was used to hold the paper charts applied to the drum: Note the nice pull and that the draw is constructed using hand made dovetails: There are 6 aneroid "disks". Apparently the more the better. The drum is driven by a balance wheel movement with a "captive" key under the lid of the drum. Overall, to me, a very high quality object. It is signed by F. Darton and Co. of London Based upon my research, they were an important maker of such instruments. I am awaiting the arrival of a book about barographs which should contain more info about them. Here is an 1902 add from that maker that shows the exact barograph: Note that this was the somewhat more expensive model. Now, of course, for the superfluous. It is an amazing (IMCO) watercolor of a factory in Manchester, NH: It is signed: The name is pronounced "Coy". J.H. Rollins Caughey was an itinerant artist from Ohio who travelled around the U.S. including New England and NH painting bird's eye views of factories, hotels, etc. Some of his paintings became chromolithographs and plates in atlases. The former were published by such prestigious firms as Strobridge. Apparently he did watercolors like this and offered them to the wealthy mill owners. No lithograph nor print based upon this particular watercolor is known. Guess Kimball and Gerrish weren't buying. A wonderful scene of the Kimball and Gerrish tannery. Gives the impression of a bustling thriving concern. Wagons and trains coming and going. So busy, they had their own signalman to regulate rail traffic. Also some Victorian wishful thinking. Note the boy fishing in an adjacent pond, the nearby house, the park like setting for the factory. In fact, tanneries spewed poison into the air and ground water. There are also documented outbreaks of anthrax from the sheep hides. None the less, evokes, to me, the view painted by such American artists as Huge and Rasmussen.