Lou Busch aka 'Joe Fingers' Carr recorded this version in 1953 vocal by his usual group The Carr-Hops.
Not a UK or US hit, originally recorded by The Four Lads a US #10 and covered by Frankie Vaughan a UK #11 both versions were titled Istanbul (Not Constantinople)
This is the German release with the US b side Maple Leaf Rag in the UK it was Yes! Yes! Yes! Yes!