These were on our 1972 Dart. They were said to be removed from a 1969 Dodge Charger. I have no idea what they are...
The rotors are large (11.95" I believe?) and the 'dished section' (area between rotor hub section & rotor braking surface is not straight/square. It is coned out from the hub to the rotor face.
They are 5x4.5" bolt pattern.

Those look more like 70-72 stuff. IIRC 69 Charger would have been 4 piston Bendix. Hopefully someone else will chime in.

11.75 rotors, single piston pin style calipers, can't tell if the caliper adapter brackets are for the 11.75 rotor or the 10.87 rotor...either way they are usually combined with 73-76 A body disc brake spindles & installed on A, B & E bodies...They bolt on to a B or E body & to use them on an earlier A body all you need to change is the upper control arms to a set from a 73-76 A body with disc brakes...