A very tough-to-find c.189O poison (Kuln, KR-10). It was probably an attic find that would be worth$100-200's in great conditon except there is a chip under the lip.

Scarce Victorian Period Poison - KR-10

Embossed	(in between hobnail columns) POISON
Color	purple-hued medium cobalt blue
Height	5 1/2"
Top	tooled ring
Base	smooth
Structural Condition	it's priced very low because it has a 3/8" chip to the underside of the ring top, plus a tiny peck on the top of the lip.
Surface Condition	Great mold impression, clean (maybe slight dullness), and just spotty trace wear.

Reference No: GW673	Reserve It
Price: $59	Payment Info

This bottle is in the middle in the pics below - for color context