Antique Walnut Weather Glass
An antique walnut weather glass brings meteorological science into the domestic interior, housing delicate barometers and barographs in handsome timber cases.
Antique Walnut Weather Glass
When you search for an antique walnut weather glass, you are looking at scientific instruments housed in wooden frames that measure atmospheric pressure to predict conditions. These items span various forms, including wall barometers, banjo barometers, stick barometers, and barographs.
The selections available include Victorian Black Forest carvings, Art Deco designs, and earlier English or continental examples from the eighteenth and nineteenth centuries. You are most likely to encounter Victorian and Black Forest aneroid barometers alongside mid-Victorian stick barometers.
Makers such as G & L Guanziroli London, Depree and Young Ltd Exeter, and Negretti & Zambra appear among the English instruments. Alongside these, Scandinavian and continental workshops produced heavily carved wooden frames.
Assessing quality and craftsmanship
The standard of carving sets pieces apart, where crisp, deep relief work on Black Forest walnut or banjo cases indicates skilled artisan labour. Simpler frames lack this sculptural depth and rely purely on the grain of the walnut veneer.
The precision and reputation of the maker also divide the range, with signed instruments from established London scientific makers commanding higher regard than unsigned continental pieces. Additionally, the survival of original ceramic dials, mercury tubes, and brass fittings preserves the historical integrity of the instrument.
G & L Guanziroli London·Depree and Young Ltd Exeter·Negretti & Zambra
The Antique Walnut Weather Glass Glossary
- Aneroid barometer
- An instrument that measures air pressure without liquid by using a small flexible metal box called an aneroid cell. This expands and contracts with pressure changes to move the pointer on the dial.
- Barograph
- A self-recording barometer that plots atmospheric pressure onto a rotating paper chart over a period of time. These instruments are typically housed in glazed walnut cases.
- Banjo barometer
- A household barometer featuring a distinctive bulbous lower section tapering to a narrower top, usually incorporating a thermometer and hygrometer alongside the main dial.
- Stick barometer
- A tall, vertical barometer containing a glass tube filled with mercury, mounted on a wooden trunk to measure barometric height directly.
- Burr walnut
- Timber taken from a walnut tree growth or burl, prized for its swirling, highly figured grain patterns when sliced into veneer.
Antique Walnut Weather Glass: Frequently Asked Questions
How do I read an aneroid barometer?
An aneroid barometer uses a pointer that moves across a dial marked with weather descriptions like rain, change, and fair. You tap the glass gently to settle the mechanism before reading the position of the hand.
A second reference hand can be manually set over the main needle to track whether pressure rises or falls over the course of the day.
Where should I hang a wall barometer?
Hang your barometer on an interior wall away from direct sunlight, radiators, and draughty doors to protect the wooden case and internal mechanics from extreme temperature swings.
Ensure the wall is stable and the mounting bracket can support the weight of the timber frame and glass components securely.
What is a barograph used for?
A barograph records continuous atmospheric pressure onto a drum wrapped in graph paper, allowing you to observe weather trends over a week. The mechanical arm traces a continuous ink line as pressure shifts.
These instruments sit within glazed wooden boxes and require regular winding of the internal clockwork drum mechanism.
How do I care for a walnut weather glass?
Dust the carved walnut case gently with a dry, soft cloth and avoid using liquid polishes that might damage antique finishes or seep into joints. Keep the glass face clean using a mild cleaner applied to the cloth rather than the instrument.
Check that mechanical mountings remain secure within the timber frame, but avoid adjusting internal linkages unless handled by a professional specialist.