The Denon DL cartrige family as a few members,

If I may be allowed to supplement TWL's post then:

The Denon cartridge members are: DL-103, DL-103D, DL-103R, DL-103S.
DL-103C is a conical stylus MC cart. Hence the "C" designator.
DL-103R has PC-OCC (pure copper using Ohno long-grain copper casting) coil wires, which is the best rendition of this classic broadcast quality cart.
The DL-103S, to the best of my knowledge, uses silver generator wires hence the S designator.
FWIW.