There is apparently a complete recording of this performance, from which the above bits are excerpted. Thanks to Jan Lohmann for providing me with these excerpts.

The Quintet played several venues in Europe in late October-early November 1967 as part of the "Newport Jazz Festival in Europe" produced by George Wein. According to Billboard magazine, groups from the tour were booked in the following cities, although each booking involved a subset of the groups involved: Baden (Germany), Barcelona (Spain), Belfast (Ireland), Berlin (Germany), Copenhagen (Denmark), Dublin (Ireland), Epernay (France), Helsinki (Finland), Karlsruhe (Germany), Lecco (Italy), London (England), Lugano (Switzerland), Lyons (France), Mainz (Germany), Paris (France), Rotterdam (The Netherlands), Stockholm (Sweden). The Quintet, usually paired with the Archie Shepp Quintet, was booked in ten cities:

October 28: Koningin Elisabethzaal, Antwerp
October 29: Hammersmith Odeon, London
October 30: De Doelen, Rotterdam
October 31: Konserthuset, Stockholm
November 1: Kulttuuritalolla, Helsinki
November 2: Tivoli Konsertsal, Copenhagen
November 4: Philharmonie, Berlin
November 5: Teatro Europa, Lecco
November 6: Salle Pleyel, Paris
November 7: Stadthalle, Karlsruhe

Also on the tour were the Thelonious Monk Octet, the Gary Burton Quartet with Larry Coryell, Sarah Vaughan and the Bob James Trio, and many others. Davis apparently left the tour early after a dispute with producer George Wein. The rest of the Quintet performed the final concert or two of the tour as "The Wayne Shorter Quartet."