What this single is, is a German version of a Danish entry to the 1957 Eurovision Song Contest. On stage, Gunnar (a.k.a. Gustav) Winckler and Birthe Wilke performed 'Skibet skal selje i nat', but for this German version Birthe made way for Bibi Johns, a Swedish singer and film actress.
My collection: 7" single no. 6493
Found: Discogs.com, received 4 November 2021
Cost: €4
Tracks: 'Das Schiff geht in See heute Nacht' / 'Gin und Rum'