We have a metal pot with the matching cover.  It dates somewhere between the 1960's - 1980's.  I believe it is stainless steel with black accents (handle and cover handle).  The pan is about 5 1/4" across the bottom center x about 3 1/8" in H.  It is about 11 3/4" from the outside of handle to the opposing side of pot.  I cleaned it quickly with a damp cloth - it is in need of a more detailed cleaning - I'm not sure all the staining inside will come off.

Metal Pot with Cover mid century vintage