RYM gives 1965 as year of release: http://rateyourmusic.com/release/album/thelonious_monk/monk_in_france/
Discogs gives 1961 as year of release: http://www.discogs.com/Thelonious-Monk-Monk-In-France/release/2750426
I guess both aren't to trust...
No, they aren't. Judging from the catalog number of Two Hours With Thelonious (Riverside 460/461), it was released in 1963 or, at the very latest, early 1964. It would not appear that the music is from 1965.