The 1969 Release of Monk's Two Hours With Thelonious is RS-3020, so I guess ABC used the 3000 series for awhile.
Edit: Looks like ABC/Riverside had a 3000 series they issued between 1967-1970, all reissues except the Perkins.
McMaster's of The Turnaround, No Room For Squares, and Straight No Filter does it. The last one has two of the sessions (June 17, 1966 and March 7, 1963 on it.
https://www.discogs.com/release/11174699-Hank-Mobley-Straight-No-Filter
20-24-ish minutes of a Live 1959 Jam Session at a Chicago club led by Philly Joe Jones? Feels kind of underwhelming to me. And shouldn't this sort of thing be what selling downloads is for? That box set seems very strange/exploitative. $225 for four LP's and trinkets? BN seems to be really milking the cash cow these days in a lot of ways. Though the upcoming Tyner/Henderson set is very exciting and an essential purchase for me.
Edit - Also being discussed here:
Underwhelming at this late date despite the reputation (and the sound quality isn't so hot, either), but still an interesting listen for the faithful. I'm a semi-faithful, so it's borderline for me. I'm likely to stick with the original studio albums:
He was still playing really well at that point, especially on the earliest albums on that box. These were recorded right after his magnificent run of Steeplechase albums. The Village Vanguard double album with Woody Shaw's group is absolutely essential, and you get the latest remaster in this box.
Highly recommended in every regard.