Ollé’s unsourced flag has red bands narrower than the outer white bands but wider than the central white stripe.
The three white bands are equal, with narrower red bands.
Harnack’s fleet-list funnel appears to have red bands wider than white. Its flag has very narrow red stripes, a central white stripe about twice their width and much wider outer white areas. From 1938 Harnack’s separate colour-livery section instead shows N13.
The later Harnack fleet-list version widens the red flag stripes slightly and makes the central white stripe the same width. The narrative names Harnack 1938, while the source list cites the 1958 edition.
Brown 1971 shows a white flag with two narrow red stripes towards the top and bottom.
This flag repeats N730’s equal white bands and narrower red bands with a different funnel. Bakker’s FOTW image follows Brown 1995.
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