"HS" Manufacturer / Distributor Identity?


Attached pictures show a small plastic box of 10 blanks in “.45 Short”. It contains the usual Helmut Diehl steel-case .450 blanks, headstamped with the “HD” logo. Diehl provided these blanks in a variety of boxes. What has me stumped is the identity of “HS” on the box. Does anyone know?