On October 29, 1955, Armstrong's All Stars group performed at Amsterdam's Concertgebouw. The taping was done by Philips, which at that time represented Columba in most European countries. There was a contractual problem with Columbia issuing tunes that duplicated Armstrong's Decca, repertoire, so George Avakian sent a list of the Amsterdam recordings for Oscar Cohen of Glaser's office to check.
Unless there are bootlegs out there (very likely), it would appear that most of the 1955 Concertgebouw recordings remain unissued. If I am wrong about that, please set me straight. Here are the editing notes for that concert:
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