The Letters Patent supplement the British Parliament's South Australia Act 1834 with respect to the founding and governance of South Australia as a British province. South Australian Governors have issued Orders to amend the Letters from time to time. A partial collection of these Letters and orders is available below.

DateType
19/02/1836Letters Patent (foundingdocs.gov.au)
29/10/1900Letters Patent - Published in SA Government Gazette 1 January 1901 p1
02/11/1934Letters Patent - Published in SA Government Gazette 28 March 1935 p928
10/01/1938Letters Patent - Published in SA Government Gazette 17 February 1938 p357
02/07/1970Letters Patent
14/02/1986Letters Patent - published in SA Government Gazette 6 March 1986 p518
25/10/2001Order in Council - published in SA Government Gazette 25 October 2001 p4687
29/06/2023Order in  Council - published in SA Government Gazette  29 June 2023 p2035