Yup, Deluxes come in several flavors and are stamped that way on the floorplate. I think some are just stamped Deluxe. I'm glad shotgunjones brought up the Cody letter source and replacement mentioned the Models 42 and 12. I'll check that one out. As I said, though, no catalog from 1930 to the end of standard production mentions Skeet Grade Model 21s. I'll keep looking.