423. Citizenship of the United Kingdom and colonies; acquisition by potential citizens of Commonwealth countries.

A person who was a British subject on 31 December 1948 and was on 1 January 1949 potentially a citizen of any of the then existing Commonwealth countries1, but not actually a citizen of any of those countries or a citizen of the United Kingdom and colonies or of the Republic of Ireland2, remained from that date a British subject without citizenship until (or unless3) he became a citizen of the United Kingdom and colonies, a citizen of an independent Commonwealth country, a citizen of the Republic of Ireland4, a citizen of Pakistan (as of 1 September 19735), or