Early antique cleaning bottle that's blown in mold, dates to the 1890's-1910 or so:
SANITAS/ THE BEST DISINFECTANT
Measures 8-3/4" x 2-7/8", with a crude, drippy lip, nuce stretch in the neck, with a thick base.
In very good condition without any chips or cracks, just some inside haze and a couple light scuffs, otherwise fine.