The best way to buy these Tear Drops is
if you can send a picture of the one you're trying to match otherwise if you
need a set the general styles are pictured as are some backplates.
general prices are listed below
Victorian Wood Tear Drop Knob, Varnished Knob With Fancy Bronze Back Plates
Complete, some knicks here and there
Large Complete Tear Drops 1-1/2" backplates 1-1/2"appx. wooden knobs