Just announced. Limited to 10,000.
Can also get a flac version
Some folks were thinking since History of Grateful Dead, Volume One 50th was a bit lacking, that there may have been a Feb 1970 box (though a lot from the 13-14th has already been released).
But here it is:

Five complete, previously unreleased performances on 17CDs
Des Moines, IA 5/13/73
Santa Barbara, CA 5/20/73
San Francisco, CA 5/26/73
Washington, D.C. 6/9/73
Washington, D.C. 6/10/73

Tracklist
Iowa State Fairgrounds, Des Moines, IA (5/13/73)
Disc 1
1. PROMISED LAND
2. DEAL
3. MEXICALI BLUES
4. THEY LOVE EACH OTHER
5. BOX OF RAIN
6. LOSER
7. BEAT IT ON DOWN THE LINE
8. CHINA CAT SUNFLOWER>
9. I KNOW YOU RIDER
10. EL PASO
11. ROW JIMMY
12. ME AND MY UNCLE
13. DON'T EASE ME IN>
14. AROUND AND AROUND


Disc 2
1. TENNESSEE JED
2. BIG RIVER
3. BERTHA
4. JACK STRAW
5. SUGAREE
6. LOOKS LIKE RAIN
7. HERE COMES SUNSHINE
8. PLAYING IN THE BAND


Disc 3
1. MISSISSIPPI HALF-STEP UPTOWN TOODELOO
2. GREATEST STORY EVER TOLD
3. BROWN-EYED WOMEN
4. CASEY JONES

Disc 4
1. HE'S GONE>
2. TRUCKIN'>
3. THE OTHER ONE>
4. EYES OF THE WORLD>
5. CHINA DOLL
6. SUGAR MAGNOLIA


Campus Stadium, UCSB, Santa Barbara, CA (5/20/73)
Disc 5
1. BERTHA
2. ME AND MY UNCLE
3. BOX OF RAIN
4. DEAL
5. LOOKS LIKE RAIN
6. TENNESSEE JED
7. THE RACE IS ON
8. CHINA CAT SUNFLOWER>
9. I KNOW YOU RIDER
10. BEAT IT ON DOWN THE LINE
11. THEY LOVE EACH OTHER
12. PLAYING IN THE BAND
Disc 6
1. PROMISED LAND
2. BROWN-EYED WOMEN
3. MEXICALI BLUES
4. ROW JIMMY
5. JACK STRAW
6. BIG RAILROAD BLUES
7. GREATEST STORY EVER TOLD
8. HERE COMES SUNSHINE
9. BIG RIVER
10. LOSER
11. EL PASO
12. CASEY JONES

Disc 7
1. TRUCKIN'>
2. JAM>
3. THE OTHER ONE>
4. EYES OF THE WORLD>
5. STELLA BLUE
6. SUGAR MAGNOLIA
7. JOHNNY B. GOODE


Kezar Stadium, San Francisco, CA (5/26/73)
Disc 8
1. PROMISED LAND
2. DEAL
3. JACK STRAW
4. TENNESSEE JED
5. THE RACE IS ON
6. SUGAREE
7. MEXICALI BLUES
8. ROW JIMMY
9. LOOKS LIKE RAIN
10. THEY LOVE EACH OTHER
11. PLAYING IN THE BAND

Disc 8
1. HERE COMES SUNSHINE
2. EL PASO
3. LOSER
4. BEAT IT ON DOWN THE LINE
5. YOU AIN'T WOMAN ENOUGH
6. BOX OF RAIN
7. CHINA CAT SUNFLOWER>
8. I KNOW YOU RIDER
9. BIG RIVER
10. BERTHA
11. AROUND AND AROUND
12. MISSISSIPPI HALF-STEP UPTOWN TOODELOO
13. ME AND MY UNCLE

Disc 10
1. HE'S GONE>
2. TRUCKIN'>
3. THE OTHER ONE
4. EYES OF THE WORLD>
5. CHINA DOLL
6. SUGAR MAGNOLIA
7. CASEY JONES


RFK Stadium, Washington, DC (6/9/73)
Disc 11
1. PROMISED LAND
2. DEAL
3. LOOKS LIKE RAIN
4. THEY LOVE EACH OTHER
5. JACK STRAW
6. LOOSE LUCY
7. MEXICALI BLUES
8. ROW JIMMY
9. EL PASO
10. BOX OF RAIN
11. SUGAREE
12. BEAT IT ON DOWN THE LINE
13. TENNESSEE JED

Disc 12
1. GREATEST STORY EVER TOLD
2. CHINA CAT SUNFLOWER>
3. I KNOW YOU RIDER
4. HE'S GONE>
5. TRUCKIN'>
6. PLAYING IN THE BAND

Disc 13
1. LOSER
2. ME AND MY UNCLE
3. MISSISSIPPI HALF-STEP UPTOWN TOODELOO
4. BIG RIVER
5. EYES OF THE WORLD>
6. CHINA DOLL
7. SUGAR MAGNOLIA


RFK Stadium, Washington, DC (6/10/73)
Disc 14
1. MORNING DEW
2. BEAT IT ON DOWN THE LINE
3. RAMBLE ON ROSE
4. JACK STRAW
5. WAVE THAT FLAG
6. LOOKS LIKE RAIN
7. BOX OF RAIN
8. THEY LOVE EACH OTHER
9. THE RACE IS ON
10. ROW JIMMY
11. EL PASO

Disc 15
1. BIRD SONG
2. PLAYING IN THE BAND
3. EYES OF THE WORLD>
4. STELLA BLUE
5. BIG RIVER
6. HERE COMES SUNSHINE

Disc 16
1. AROUND AND AROUND
2. DARK STAR>
3. HE'S GONE>
4. WHARF RAT>
5. TRUCKIN'
6. SUGAR MAGNOLIA


Disc 17
Final set with Dickey Betts and Butch Trucks
1. IT TAKES A LOT TO LAUGH, IT TAKES A TRAIN TO CRY
2. THAT'S ALL RIGHT
3. PROMISED LAND
4. NOT FADE AWAY>
5. GOIN' DOWN THE ROAD FEELING BAD>
6. DRUMS>
7. NOT FADE AWAY
8. JOHNNY B. GOODE

I still haven't figured out how to store the In And Out Of The Garden set, but that didn't stop me from ordering another set from my favorite Dead decade.

You forgot to put "Grateful Dead" in the topic title.

Well it arrived yesterday, and in keeping with the tradition (15 years or so) of these sets, it is quite the set/presentation. Its sized about the same as the Giants box set, but with an art design closer to the May 77 box. Which is a major plus compared to the design/art of In And Out Of The Garden (so glad they revisited that concept). Looking forward to listening to it this weekend for sure.