Gerald Wilson took the place of the more usual Jack Sheldon on trumpet on the Curtis Counce Group's January 6 1958 date when they recorded "So Nice", "Origin", "Bella Rosa", "Night in Tunisia", "La Rue" and "Carl's Blues".
I think I have that record--will have to check it out again when I get home from work tonight.
I have those tracks spread across two OJC/Contemporary albums: Carl's Blues and Sonority. You'd expect them all to be included on the recent Complete Studio Recordings: The Master Takes by Curtis Counce from Lonehill/Fresh Sound, but as is so often the case, some are omitted!