What is a banjo barometer?

A banjo barometer is a wall-mounted weather instrument housed within a distinctive, curved wooden case resembling a stringed banjo. These pieces typically combine multiple instruments, mounting a thermometer at the top and an aneroid or mercury dial at the base.

How do you read an aneroid thermometer?

An aneroid thermometer relies on internal mechanical elements rather than liquid expansion to register ambient temperature variations. Readings are taken directly from the marked scale on the brass or porcelain dial face mounted within the timber case.

Where were these instruments placed?

These domestic instruments hung in hallways, libraries, and principal living rooms where household occupants checked the weather before going out. Smaller desk versions sat upon library tables or writing desks alongside matching clocks and inkwells.

How do you care for a wood case?

Wooden cases require stable indoor environments away from direct heat sources and extreme humidity fluctuations to protect the veneer. Dust the polished oak or mahogany surfaces gently with a dry cloth and avoid applying modern liquid polishes.