You can see a rather clear symbol that looks like maybe a plus or X and opposite that a very faint O or something.
If the signs and symbols are correctly interpreted, I'd say this is a 1850–1870 American whiskey bottle from a small regional glasshouse
The dark olive-green is a classic whisky color. The lady's leg is typical 1840 - 1870 era. The 13-inch height and four-inch base is also rather standard for a whiskey. On the bottom you can see a post-mold tooling scar. The plus sign, or whatever it is, is probably a hand-engraved mold cutter's mark, and the O, probably a mold identifier.

