Very Rare Antique Early 19th Century 1 foot Gunter Navigational Scale Rule Ruler For Sale

Very Rare Antique Early 19th Century 1 foot Gunter Navigational Scale Rule RulerA beautiful early 19th Century 1ft Gunter scale for navigation. These 1 foot versions are far less frequently seen than the bigger brother 2 foot versions.
These are usually not named as to maker - and this one is no exception. All the usual Gunter scales. Tiny brass gauge points for use with a compass. No splits or significant chips. All scales legible.
A fascinating and rare piecefor you to own.