One large chart for finding altitudes and azimuths and seven smaller ones. Disigned by P. Clissold and A.J. Tweddel, Master Mariners. For use at any time in any part of the world.
Substitute fort he star-globe. Original chart in envelope.

Catalog: BK.1-13
Date: ca. 1950
Publishd by: Brown, Son & Feruson ltd, 4-10 Darnley Street, Glasgow
Origin: England
Condition: in good condition with folds as issued