Pair Antique Bronze/Brass & Crystal Glass Door Knob Sets - 1 Rosette

An antique pair of door knob sets for a mortise lock set. Unknown maker - round bronze/brass knobs and octagonal crystal glass knobs - one rosette. I found these sets as seen - maybe a marriage from the previous owner dealer?... or not.

Sizes aprx. 2-1/4" diameters... threaded two piece spindles... combined weight 2.2 lbs.

Unrestored condition with original patina... no dents to bronze... some scuff to glass face - no chips/cracks... no other parts provided.