This is a small size square poison in great shape. Circa 1910-1915, it has a machined ring top. This is bottle #1 in the group pic below, shown for color comparisons.
Embossed: (pic of skull and crossbones) / POISON / TINCT. / IODINE
Height: 2 5/8 "
Condition: Mint - structurally perfect (no dings, chips, cracks), clean, and a nice strike.
Reference Number: L172