Very Rare, Teal Green, 3 1/2in. Round, Base Embossed P.D. & Co., 132, Full Labels, POWDERED EXTRACT, CALABAR BEAN, PHYSOSTIGMA VENENOSUM, ASSAYED, From The Laboratory Of PARKE DAVIS, POISON, Rounded Tooled Lip, Smooth Base, Beautiful Color & Clarity, The Calabar Bean was used for diseases of the eye & tetanus, Antidotes were Iodine & Atropine, This was some Nasty medicine, Please Google Calabar Bean to see other uses, effects & other info