Special Study No. 20
Special Study No. 1
Special Study No. 6
Special Study No. 10
Special Study No. 16
Special Study No. 21
Special Study No. 4
Special Study No. 7
Special Study No. 8
Special Study No. 13
Special Study No. 17
Special Study No. 3
Special Study No. 9
Special Study No. 11
Special Study No. 12
Special Study No. 15
Special Study No. 18
Special Study No. 5
Special Study No. 14
Special Study No. 19
Special report of Japanese Naval ship construction-A quarterly shipyard study. Report No. 46m(3), USSBS Index Section 2
Other special reports(brown folders): Japanese naval ship construction-quarterly shipyard study. Report No. 55c(9)(b), USSBS Index Section 2
Other special reports(brown folders): Japanese Merchant ship construction- quarterly shipyard study. Report No. 55c(9)(d), USSBS Index Section 2
Background Doc. No. 72: Secret Societies in Japan. Special Report No. 2
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Uploaded: 2020-12-17