



Schneider’s 2007 rectangular reconstruction from a website file was doubtful from the outset. It gave the diamond a black lower part; he also reported side plates with a more upright Lower Saxony horse in a red rectangle with concave sides, and a bow version with reversed horse and red letters. Rosanoski found the reversed horse only on Niedersachsen 9. He argues that the diamond base should be green, separated from the red upper part by a curved white line. In August 2010 Schneider agreed that the rectangular image was probably erroneous: he had observed pennants and a green base. An inland-shipping website apparently copied the reconstruction, which Rosanoski warns does not independently substantiate it.
Flaggen auf dem Rhein and Flaggen der Binnenschiffahrt support short pennants, perhaps shortened to fit the printed illustration space. They omit the white dividing line, possibly through printing limitations; the lower segment still forms a hill. One cited rendering is black below. A partially hidden marcollect table flag may also be a short pennant, but its obscured fly prevents certainty. The Rhein version shows all four horse legs.
Company photographs of Niedersachsen 21 and Niedersaschen 22 establish use of pennants. Jan Mertens supplied a pennant image in February 2006 and another from a 2007 auction, described as a newly made triangular mast flag about 120 cm long. Niedersachsen 22’s bow has red and white bands with a white-edged diamond on the red, the horse facing as on the flag, and pennant-like painted forms on both sides. The yellow funnel of Niederrsachsen 1 has a broad red-over-white band covering nearly all of it. Its partly obscured stern view appears to repeat the bow scheme: diamond edged white on red, letters white on red and black on white.
Michaels depicts an earlier flag, dated 1935: white with a very broad red cross bearing a white horse, and black NVGH in the small white quarters.