Only 500 of these combination clock barometers by E Bourdon & Richard were ever produced. This example is priced at £3400 from Carlton Clocks in Buckinghamshire.
Bourdon patented this type of barometer gauge in 1849, with this 10in (26cm) high ship’s style combined clock metallic example dating to the 1860s. The eight-day spring driven clock movement is signed Richard a Paris with silvered lever platform escapement and the back plate struck with serial number 80.