Forgot the list of chips in the original post.

Scan 1
Row 1 Deadwood, SD: Gold Dust, Lucky Nugget, Silverado, Cadillac Jacks
Row2 Deadwood, SD: Four Aces. Dakota Sioux, Watertown, SD, (both sides), Four Bears, New Town, ND.
Row 3 Sky Dancer, Belcourt, ND, Dakota Magic, Hankinson, ND, Harrah’s Council Bluffs, IA
Row 4 Argosy, Sioux City, IA, Winnavegas, Sloan, IA, Casino Omaha, Onawa, IA, Ameristar, Council Bluffs, IA
Row 5 Horseshoe, Council Bluffs, IA, Prairie Meadows, Altoona, IA, Rythmn City, Davenport, IA, Isle of Capri, Bettendorf, IA