Hi all. 1958 should be removed as a year of issue for this £10 note. The notes were issued in 1929 (2 dates), 1942, and 1943. 4 dates in all. 1958 here is likely a typo, as the corresponding £5 note issue had two dates in 1958.
See SCWPM, 16th Ed., p925.
More reference available if required (I'll have to get the books out, have SCWPM digital Ed!)