
Experimental Form 1 (Licence to use Wireless Telegraph), 1905
1905
1905
2005
1855
unknown
1913
1906
1906
1875
1944
1946
1869
1943
1869
2009
1914
1897
1908
1850-1859
1924
1946
1924
1933
circa 2014
2021
1890-1922
1954
1912-1913
1864
1875