This item is authorised by the following title:
Wireless Telegraphy Regulations 1916 (Amendment) (SR 1920 No. 68 | C1920L00068)
Wireless Telegraphy Regulations 1916 (Amendment) (SR 1919 No. 134 | C1919L00134)
Wireless Telegraphy Regulations 1916 (Amendment) (SR 1918 No. 164 | C1918L00164)
Wireless Telegraphy Regulations 1916 (Amendment) (SR 1918 No. 17 | C1918L00017)
Wireless Telegraphy Regulations 1916 (Amendment) (SR 1917 No. 136 | C1917L00136)
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