MS IRMA (OGDX, LR 516337) Valmistunut/completed: 1947.10.23, Norge, Fredrikstad, Seutelvens Mek. Verksted.
530 dwt, 361 GRT, 270 HP -> 585 HP (1968), 44.64 x 7.56 x 3.60 m. Yard no 36.
1947.10.23: KARI K., Oslo, Fridtjof Kristiansens Rederi A/S.
1956: VESLEMØY, Stavanger. Skips-A/S Veslemøy (O. E. Vea)
1961: IRMA, Porvoo. Partrederi Irma (J. A. Grönqvist).
1968.10.25: IRMA, enroute Klaipeda - Rauma loaded with anthracite disappeared in 10 beauf. storm. Last radio contact when Understen lighthouse was passed and the IRMA was heading for Rauma. Last seen off Eckerö in the late evening. Eleven lives were lost. 1968.10.30: mate Thorvald Grönqvist was found dead from liferaft off Yxskär, also debris. Oil spill was noticed west of Isokari, also echo sounder sighting, but the wreck was not found.
2019.5.21: the hulk was discovered 23 nm west of Isokari, in 43 m deep water.