The dealer I purchased this old blown glass vial from noted it as 18th century. I'm no glass expert, and don't know whether that is correct or not; it seems possible to me that it has endured a fire since, which resulted in its beautifully misshapen form. Whatever the case, it appeals to me in many of the same ways as ancient Roman glass vials do--encrusted, highly sculptural, and delicate aqua blue with lots of bubbles in the glass and thick walls encasing the vessel itself toward the bottom. It looks to me that it was blown into a form, with two mold lines running along the sides of the body of the bottle.
3 3/4" t x 3/4" in diameter. Plenty of irregularities, all to the good; no chips or cracks or other structural issues.