Sources vary in the N’s shape, the forms behind it and the treatment of the funnel bands. Photographs show lighter and darker blues, with dark blue difficult to distinguish against black. Aft steps may be sloping or vertical, perhaps following the funnel’s rake; some drawings extend the bands fully round. The group livery was probably used by subsidiaries apart from the two Greek International companies. Sources specifically confirm Neptune Tanker, Panama Oceanic Lines, Wickes S.S., World Tanker and Hellenic Shipyards.
Midway Shipping is recorded with the group funnel. Northern Conqueror in May 1965 lacked the N but retained the stepped bands; Northern Joy carried the letter in June, described as an exception. Northern-prefixed ships without N are identified in the source with North Pacific Shipping.
The funnel follows a late-1960s starboard photograph, probably of World News but possibly World Negotiator. The N’s aft stroke and the band ends slope with the funnel. Bands continue round the front, not the rear, and the blue is lighter than on the museum flag. Brown 1958 may show full-width bands, though its misaligned drawing is inconclusive. The museum’s Niarchos Ltd. flag is dated 1955–67 and measures 1219.2 × 1828.8 mm.
Stewart’s N143 bands stop short aft and slope as in N490; the source records the direction with the notation “pbds”.
World Produce’s photograph of 25 May 2000 confirms this funnel, but whether the band ends slope is unclear. Mitchell gives both sloping and non-sloping versions, one under International Operations.
Keep the explicit scope label independent; no alias or company identity is inferred.