Dudley's chart of the southern Cornish coast. First map with latirudes and longitudes according to the Mercator projection:

Map of the british Isles, by Johannes Janssonius,north to the right

Varenius Berhardus, first edition

Portolaan vellum map of Europe by Pieter Goos

The theory of navigation by Abraham de Graef pinted by Pieter Goos

used seachart by Hendrick Doncker

World Sea-atlas by Robert Dudley, six books in two volumes. Second edition

Part one of first edition of the famous Atlas major, with all instruments of Tycho Brahe

Part one of first edition of the famous Atlas major, with all instruments of Tycho Brahe

from part one of first edition of the famous Atlas major, with all instruments of Tycho Brahe

From Part one of first edition of the famous Atlas major, with all instruments of Tycho Brahe

Pieter Goos, sea chart features the entire coast of Belgium with small parts of France, England, and the Netherlands

Brass and iron lage. nice decorated pair of friction-type dividers

Early rare Dutch compass with Dutch wind direction. Roman hours on outer ring, and gnomon that can be lowered during transportation

Rare silver Belgian sundial signed by Jan van Sÿchen made circa 1670

Seamap of Pieter Goos: De cust van Zeelandt, begrypende in sich de gaten als van de Wielingen, ter Veere, Ziericzee, Brouwershaven, Goeree, en de Maes

Western part of the Mediterrenean Sea by Frederick de Wit

Eastern part of the Mediterreanean Sea by Frederick de Wit

Pascaert van de NOORD ZEE van Ameloo tot de hoofden van A'dam by Frederick de Wit

Seachart og the Northsea by Hendrick Doncker, North to the left

Six seacharts from Pieter Goos in one composite atlas by Jacob Robijn

Fourth edition of this rare and important work on the Art of Navigation

Seachart of the Northsea by Johannes van Keulen North to the bottom: Nieuwe Pascaert Bevattende in sich de Kust van Vlaenderen van de Wielingen tot den Hoofden

Seachart from the southern part of the Nortsea and Channel, North to the bottom of the map.

A mariner’s guide. It is the first that provided practical help in all types of trigonometry and navigation. It is divided into three books. The first deals with plane trigonometry, the second with spherical trigonometry , the third with navigation.

Map of one of the Islands of th Northern Sporades by Piancenza F.

three different drawing instruments: 1/ Demi-Pied de Roy by Butterfield A Paris, 2/ Angle scale by Dolland , 3/ Sector Pied-de- Roi by Butterfield

Important clock designed by Christiaan Huygens, who did seatrials to find longitude at sea, 120 years after the suggestion by Gemma Frisius, and 100 years before Harrison's Chronometer.

Important clock designed by Christiaan Huygens, who did seatrials to find longitude at sea, 120 years after the suggestion by Gemma Frisius, and 100 years before Harrison's Chronometer.

Large engraved nautical chart of the English Channel, with the coastline of northwest France from la baie de Douarnenez (Brittany) to Dunkerque (Flanders), and the coastline of England and Wales from Stroble head to Manning Tree. By Sanson

Seachart from Jaillot et Mortier, North is down of the map

engraving of the channel between England and France. Contemporary coloured. Cartouche not coloured

Novissima et Accuratissima Canalis inter Angliae et Galliae
Tabula cum omnibus suis Portibus+ Arenis et profundis per
Theodorum Danckerum Amstelodami cum Privilegio Ordinum Hollandiae et Westfrisiae

Circumnavigation by William Dampier, first Dutch edition

17th or early 18th century. probably Continental. To remagnetisise the compass needle.

Typical marine hour-glass to measure the 'glasses' of the watch

Dutch or Spanisch universal ringdial in leather cover

17 th century Single handed dividers 15 cm

Nicolas Aubin, Dictionaire de marine contenant les termes de la navigation et de l'architecture navale.
1702

Map of four Islands of the Northern Sporades by Dapper: maps of “Schiatti + Scopoli & Zea” and " Pelagnisi & Dromi"

Describing the Sea Coasts, Chanells, Soundings, Sands, Shoals, Rocks, and Dangers, The Bayes, Roads, Harbors Rivers & Ports with the Buoyes Beacons, and Sea markes, upon ye Coasts of England, Holland, Flanders & France

Important French work on navigation by Jean Bouguer

first edition publication of the Act in 1714

Small copperprint of the two hemispheres celeste

Dutch. Anonymous but dated ‘1719’ with handle.

Groote nieuwe Paskaart van de Geheele NOORD-ZEE vertoonenede in sig alle dessels Rivire Havens Baye Dieptens en droogtens daar in Geleegen Nota de gebruiker moet in dese Kaard sijn Miswijsing selver vergoeden.

Large map shows many different nautical instruments used in navigation, ship types, and ship building:
'Nouvelle carte pour conduire à la connoissance de la marine et à demontrer la plus part des instruments'.

Antique, but near-faithful (but a bit smaller ) copy of the ‘Isa ibn Allahdad’ astrolabe of Lahore. Pakistan

The complete works of Christiaan Huygens by Janssonius Vander Aa

Later edition of the Act of Longitude