From 1906, Takeshima (government land) was leased out to sea lion hunters, collecting fees from operators. (Ref.1)

Hunting licenses on Takeshima were issued in five-year terms from 1906. Sea lion hunting on Takeshima was halted for a period of time after World War Two. However, the Shimane Governor granted a common fishing license to the Oki Islands Federation of Fisheries Co-operative Association in June of 1953 after the Treaty of San Francisco entered into force [in 1952]. Three operators, including Hashioka Tadashige, were permitted to hunt sea lions on Takeshima. (Ref.2)

Ref. 1: “Shimane Prefecture Land No. 2034,” 1906

Ref. 2: “Shimane Prefecture Ocean Surface Fishing Adjustment Regulations,” (Shimane Prefecture Regulation No. 88, 1951)

Related documents
S. Tamura, Shimane-Ken Takeshima no Shinkenkyu (Study on Takeshima of Shimane Prefecture: New edition), revised reprint, Shimane Prefectural Government, 2010, pp.53-56

“Sea lion hunting” licenses issued by the Shimane Prefectural Government in 1953 (Archived by the Shimane Prefectural Government; Department for Agriculture, Forestry and Fisheries; Fisheries Section)