Up for auction is a replacement clock mechanism for the Belfort Microbarograph. This should also fit their recordable rain gauge and thermohygrographs. This particular clock is built on the Chelsea escapement platform.Grab an extra on of these for a spare! They don't make these anymore. The lucky winner will pay actual shipping charges in the C ontinental U.S. only . I do not charge a fee for packing like some do. Even so, I pack the instrument very well to ensure safe arrival. I accept money order, cashier's check or Paypal. Thanks and happy bidding!