Northern Steamship Co. — historical1923–1926 pennant

Lomantsov gives adoption of the Northern Steamship pennant on 30 July 1923 and use until 1926. The Flag Bulletin reference instead records approval for the Northern State Maritime Shipping Authority on 29 August 1925 and abolition on 15 January 1926. Martins suggests the historical company is the present Northern Shipping, but its pre-Soviet house flag remained unknown.

Authority equivalence and decree-date discrepancy retained; no modern JSC attribution.