Beall's Patent Deviascope, c.1890-1910

Story

As the world transitioned from wooden sailing ships to massive iron-hulled steamers in the late 19th century, a deadly problem emerged: the ships themselves were giant magnets that pulled compass needles wildly off course.

Maker / Origin

While the specific workshop mark is partially obscured, the 'LONDON' designation identifies it as a product of the world's premier scientific instrument hub.

Condition & Value

The brass exhibits a rich, authentic patina with minor surface oxidation consistent with age. The wooden case shows typical 'shelf wear' and some drying of the leather strap, but the structural integrity of the dovetails remains excellent. The presence of the original sighting assembly is a major plus for value.