DSCP (Defense Supply Center Philadelphia) is the name of the organization that managed U.S. military supplies from around 1998 to 2010. The zipper is a Talon 42, but it's unlikely to be original to this era, so I think only the zipper was replaced later. There is a 0.5cm pinhole on the left knee. Rise: 30cm Inseam: 66cm Waist: 38cm x 2 Leg opening: 23cm