I have a small book. Very interesting, it may or may not be valuable, but I can't track down much information.
Star Compass by Francis Chichester (yes the Sir Francis) George Allen & Unwin 1945 1st edition.
It is a small 43pp hardback in a dj including a working star compass made out of card and celluloid. It is said to be a means of determining longitude, which was a method I thought became obsolete with the development of Harrison's marine chronometer.
Any information gratefully received.
