Shabonee first flew the replacement flag on 30 August 1944; Satucket’s funnel was recorded in the house magazine in August 1946. S680 appears to be a variant of S3 and was also used by long-chartered Tankers Navigation vessels. FOTW describes a white swallowtail with blue edges and red Pegasus, but Rosanoski notes that the cited sources show S3 rather than that precise version. He suggests a possible distinction between shore flags and the tapered sea-going form. The 1955 name change preceded the 1957 livery change.
Keep the explicit scope label independent; no alias or company identity is inferred.