Gibraltar SG Catalogue 6th Edition
This catalogue provides a comprehensive priced listing of stamps issued by Cyprus, Turkish Cypriot Posts, Gibraltar and Malta, as well as the former British colonies in Europe of Heligoland and the Ionian Islands and also the British Post Offices in Crete. Listings for issues up to 1970 have been extracted from the 2019 Commonwealth and British Empire Stamps 1870–1970, more recent issues have been specially repriced for this volume.