6 Awesome Vintage Antique Art Nouveau Metal Door Knobs W/3 Backplates & 3 Locks

Lot of 6 great vintage metal door knobs with 3 Back-plates & 3 locks.
These great vintage knobs are all in pretty great shape & should clean up beautifully.
The locks seem to be in working order. One needs the lock secured, as it slides freely.
The Back-plates measure 8" x 2-1/2"
The locks measure 3-1/8" x 3-3/4"
The knobs are 2-1/4" dia.
I do not have the keys. Sorry.