A 18th Century bone case pocket combined

A 19th Century wood cruciform sundial si

A late 16th/early 17th Century gilt bras

A lacquered brass helio-chronometer sign

A late 18th Century lacquered brass pant

A 19th Century brass surveying Compass s

A 19th-Century brass surveying compass,

An early 19th century brass surveying le

A small circumferentor signed Harris 47

A 19th Century brass surveying level sig

A lacquered brass surveying level signed

An early 19th Century brass surveying le

An oxidised and lacquered brass surveyin

An oxidised and lacquered brass surveyin

A late 18th Century brass surveying comp