Auction: Clocks, Watches & Scientific Instruments - 2419Location: BoltonDate / Time: August 23, 2008 10:00AM
Description:
Barograph, early 20th century, with seven pressure discs, clockwork mechanism in the drum, recording stylus, mahogany case with hinged lid and celluloid plaque of L.E. Knott Apparatus Co., Scientific Supplies, Boston, Mass., wd. 11 in.
Estimate $400-600