Japanese cargo ship (ex-Spennymore1905-1914, Joh. Ludw. Mowinckel 1914-1928, Tsukumo Maru 1928-1932, Unyo Maru No. 6 1932-1939) Takuzan Maru 1939-1955 (Shunmei Maru 1955-1957, Yoshinogawa Maru 1957-1960)

Call sign JBEC. Built by John Blumer&Co., Sunderland, United Kingdom with yard number 182 in May 1905. As Spennymoor United Kingdom-flagged and owned and as Joh. Ludw. Mowinckel Norway-flagged, owner Olaf Ørvig, Bergen, Norway, call sign WKCM. Gross tonnage 2,753 tons, under deck 1,559 tons (?), net tonnage 1,980 tons, deadweight 4,670 tons and as dimensions 314.00 x 46.2 x 23.0 x 6.6 (light)-19.8 (loaded) feet. Reciprocating propulsion, 257 nhp, coal bunker capacity 524 ton, range 5,200 miles/9 knots and speed 9 (normal cruising)-10 (maximum) knots