fine example of a boxed spherical compass manufactured by Kelvin
White, Boston. The liquid-filled gimballed
compass is housed inside a mahogany box, retaining the original
black-painted gimbal ring is engraved "SPHERICAL COMPASS"
"KELVIN WHITE BOSTON" and the serial number "6104S".
The compass measures 5 inches in diameter, but the compass is
magnified via the glass sphere. There is a bubble from minor loss of
the liquid fill, but remains in good working order.
lid of the mahogany box is fitted to the base with three dowels and
locks down with two brass hooks and keeps. A brass bracket is fixed
on one side so that the compass could be hung and used on a bulkhead.
The box with lid measures 8 1/2 X 8 1/2 X 8 1/2 inches. Weighs just
shy of 11 pounds.
to the company's history, the spherical compass was invented in 1931
and received his US Patent in 1935. This is an early example of
Kelvin White's spherical compass.