I've learned that there are a few variants of these shoe bottles, all assumed to be c.1900. This is the uncommon black amethyst version with the peachy paint on the exposed toe. The top is an early screw thread like you see on figural whiskey flasks.
Embossed on sole: PAT. APL'D FOR
Height: 3 3/4"
Color: very very deep black amethyst (see pic inside for hue)
Condition: attic mint - perfect structurally, perfectly clean, hardly any wear to the glass. Note that some of the original paint on the toe has eroded away (see pics).
Reference Number: FL257