MOPAR 4383942 & 4383943 Disk Brake Calipers and Adapters (sold as pair - LH & RH).  Cast numbers "4308" and "4281" on one caliper and adapter, respectively.  Numbers "4341" and "4261" on the other set.  Used on a variety of Chrysler vehicles between 1983 and 1987 as well as TC Maserati thru 1991. Buyer responsible for ensuring proper application.  Obviously used but the rails for the brake pads show very little wear.