This bottle is identical size and shape of a Lyon's Powder, and it's a knock-off poison from the same period. Smooth-based, but very crude with an uneven hand finished ring top.
Embossed: SCHWERIN'S / POWDER
Height: 4 5/8"
Condition: excellent - - structurally perfect with no damage, some overall dull haze and trace wear.
Reference Number: PJ7