~ Nickel Finished Victorian Brewing Hydrometer By Hannan Buchanan Of Glasgow ~
~ Hannan Buchanan ~
Hannan & Buchanan was a prominent Glasgow-based firm established around 1865 (becoming Hannan & Buchanan by 1869), specializing in manufacturing steam-engine accessories and scientific instruments. Located on Robertson Street, they produced instruments in the late 19th century, with their work often linked to high-quality industrial, engineering, and marine measuring devices.