Antique Pocket Barometer/Altimeter by J.J. Hicks, London, Eng

Description

Antique Pocket Barometer/Altimeter by J.J. Hicks, London, Eng.
J.J. Hicks, London Eng, pocket type altimeter/barometer. Not sure what this was used for, or how it works, or even if it is working. No clue. The case is included and has obvious wear as you can see in the pictures. The latch on the case doesn’t seem to be working. I would say the front of the altimeter/barometer looks decent for its age, but the back has a good bit of wear. J.J.H.7 is inscribed on the back. No idea what this means.
Being sold as-is, all sales final. No refunds or returns. Please ask questions before bidding or buying. I don’t know really anything about it but will try to answer any questions.
Shipped with USPS Priority Mail Small Flat Rate Box.