vintage replacement Rembrandt shade pair, mid-century glass diffuser torchiere shades

Two vintage glass diffuser shades salvaged from a pair of mid-century Rembrandt lamps. The shades have embossed lettering at the neck - National Home Lamp Council #955, with a 1957 patent number.

These measure 6" across the wide end on the shades, 2 1/4" at the fitter, 5 1/4" tall. Both have a few soil marks (should clean up nicely, they have no yellowing or staining). One shade has a flat chip to the colored white finish, shallow, not all the way though the glass.