need help with brake drum I.D

I know it wouldn't be for an 8.25. I know I ordered it for an 8.75. I usually order items for a 66-68 Coronet for Tylers 8.75 rearend when I put his together. When he gets home from work with his car I am going to check his drums. Maybe there is a screw up somewhere with the boxes. I just thought someone on here with an 8.75 would know by the look of the drum I pictured.