This is a remarkable sea-sounding instrument or depth meter. It’s based on atmosheric pressure and invented by Wigzell, London. The instrument is put away in a pine box together with a fathom scale. The instructions for use are stuck on the inside of the lid. The instrument exists of a clear tube mounted inside a…

Well preserved and hardly used gimbaled bearing compass with V- and back-sight in oak case with lid. V- and back-sight can be put apart in the chest. With spare needle. On the rose a graduation as well as the 32 points and the name of the maker. North with fleur de lis, east – direction…

A very rare brass distress signalling lamp with conical extinguisher. The cover with shaped handle enclosing a twine ball on steel shaft. Filled with paraffin the soaked twine could be lit to provide a source of illumination to attract the attention of passing ships. Catalog: NM.4-35 Date: ca. 1850 H: 33 cm (13 in) Signed:…

Attractive English eight days marine barograph in mahogany case with two windows. The mecanics are made of brass and stainless steel, with seven stage bellows. The instrument is signed and numbered on the bottom plate. In working order and complete with key, violet ink in glass inkwell, graphic paper and a reserve pointer with arm…

A remarkable sea-sounding instrument, invented by the Norwegian Captain Sigurdsons, based on atmosheric pressure as the sea-sounding instrument of Wigzell. The instrument is put away in a pine box with a deep lead. On the lid an instruction sheet pasted to the inside. The instrument exists of a clear tube mounted inside a brass housing.…

A ship-log records the distance travelled through the water. With the time in hours between the observations, it gives the ship’s speed in knots. The Trident is a large version and predecessor of the Cherub log, disigned for high speeds of 18 knots and upwards. The clock has to be fixed on the rail at…

Rare Italian eight days barograph in mahogany case with three windows. The mecanics are made of stainless steel, with eight stage bellows. The instrument is numbered on the bottom plate and signed on top of the case. In working order and complete with key, violet ink and graphic paper. Model 715-795. Catalog: NM.4-27 Date: ca.…

Very large telescope for use in lighthouses and other observation posts along the coast. It’s a single draw telescope with adjusting device. Length when closed 122 cm, pulled out 165 cm. The mainbody consists of fine quality mahogany and in good condition. The eye lens is fitted with a sliding lens protector. The objective lens…

From the 17th century onwards people had made many attempts to devise a mechanical log which would automatically record the ships distance done. Edward Massey invented a mechanical log in 1802 with four blades which was used by the Admiralty from 1807-1815. When dragged behind the ship the log vins rotates and the revolutions were…