Mark Davis Antiques has dated this Antique Pocket Barometer to the 19th Century.
It retains its original leather case, which is also in excellent condition.
The barometer appears in excellent working order.
Martin & Co were almost certainly the retailers rather than makers.
Mark Davis Antiques has dated this Antique Pocket Barometer to the 19th Century.
You can view the stock and full dealer information on the Mark Davis Antiques Profile Page