The label attached to the front of the machine
dovetailed pine box states: "Walker's Excelsior IV ships log, complete
Walker's Excelsior IV ship-log {Outrigger Pattern} Made in England by Thos.
Walker & Son, Ltd, 58, Oxford Street, Birmingham." (For Yachts, Motor
Launches and small Fishing Craft).
Dimensions:
Height: 5 1/2 in. Width: 15 1/4 in Depth: 7 1/2 in Weight: 15 pounds.
The Walker’s Excelsior IV Patent Log is a nautical
instrument for measuring a vessel’s speed and distance travel. When navigating
a ship, it is essential to be able to estimate the boat’s speed and distance
travelled to determine its position at sea.