Diggin' beyond the crates in action: Photos of powerhouse reissue label Numero Group's search for lost geniuses.

1.The 13th Amendment

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Active from the late-1960s through mid-1972, the 13th Amendment were a dashiki-clad 10-piece Baton Rouge soul revue, sponsored by Parish councilman Joseph Delpit, who operated under the banner of "Musical Freedom Personified." Known for their "breakneck medleys" and improvised comedy skits, they also recorded a handful of impressive originals, including the 45 "Hard to Be in Love" b/w "The Stretch," which will be included on Numero Group's Eccentric Soul: Omnibus collection, set for release Oct. 31 of this year. Pictured above are three of the original band members at local antique record store, the Rock Shop.

Read SPIN's full feature on the world's greatest reissue label, Numero Group

2.The 13th Amendment

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Active from the late-1960s through mid-1972, the 13th Amendment were a dashiki-clad 10-piece Baton Rouge soul revue, sponsored by Parish councilman Joseph Delpit, who operated under the banner of "Musical Freedom Personified." Known for their "breakneck medleys" and improvised comedy skits, they also recorded a handful of impressive originals, including the 45 "Hard to Be in Love" b/w "The Stretch," which will be included on Numero Group's Eccentric Soul: Omnibus collection, set for release Oct. 31 of this year. Pictured above are three of the original band members at local antique record store, the Rock Shop.

Read SPIN's full feature on the world's greatest reissue label, Numero Group

3.Fillipa "Flip" Stewart, owner of the Rock Shop

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Flip Stewart, outside the Baton Rouge record store founded by her father Buddy (a popular local band leader), originally known as Buddy Stewart's Rock Shop.

4.Vinyl Mania

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Numero Group sales director Dustin Drase listens to an album on his portable turntable at the Rock Shop.

5.Rainbow of Soul

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One corner of the Stewarts' colored-vinyl collection, hanging from the ceiling of the Rock Shop.

6.The Real Nitty Gritty

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Numero Group's Ken Shipley (left) and Rob Sevier (right) comb through 45s on the floor of the Rock Shop.

7.The Secret Museum

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An exhibition of photos and posters inside the soul-music museum adjacent to the Rock Shop.

8.Setting the Record Straight

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Numero Group's Shipley and Sevier meet with members of the 13th Amendment in the Rock Shop museum.

9.A member of the 13th Amendment, at the Rock Shop

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10.A member of the 13th Amendment

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11.Their Back Pages

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A member of the 13th Amendment (and friend) exit the Rock Shop museum

12.Precious Cargo

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A crate of Numero Group vinyl in the backseat of Dustin Drase's car.

13.Soul Survivor

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Baton Rouge singer-songwriter Louis Dunn, of the Underground Express and Walter B and the New Breed, in the small studio he maintains behind his house.

14.Louis Dunn's record collection

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15.The Search Goes On...

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Numero's Ken Shipley and Louis Dunn on the patio of Dunn's house, flipping through 45s.

16.Talking Shop

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Louis Dunn chats with Numero's Shipley (center) and Sevier (left).

17.Still on His Grind

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Outside his Baton Rouge home, Louis Dunn stands beside a sign for a show by his current band, the Dunn Deal.

18.Louis Dunn

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19.The Numeromobile

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Peering into the trunk of Dustin Drase's car, packed tight with vinyl and other provisions for Numero's Louisiana trip.

20.Numero Group's Rob Sevier

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21.The Grail Quest

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Numero Group's Sevier inspects one of Valerian Smith's master tapes. Smith, who died in 1992, was the writer and producer behind tracks by the Baton Rouge group Black Blood and the Chocolate Pickles, including the extraordinary funk dirge “Mississippi Mud.” on which Smith also played.

22.Tough Crowd

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Valerian "Pepper" Smith II and Kim Butler-Smith in the living room of the their father's home in Baton Rouge.

23.Making the Pitch

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Ken Shipley and Rob Sevier at the home of the late Valerian Smith.

24.The Paper Trail

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Numero's Ken Shipley looks over documents with the Valerian Smith family.

25.Valerian Smith's master tapes

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26.Smith Family Values

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The family of Valerian Smith (left to right): Lynn Whitfield, Valerian "Pepper" Smith II, Valeria Jean Butler, Kim Butler-Smith, and Shawne Langston.