Here are a couple of other bottles found this weekend,don't know much about the (mrs.winslows soothing syrup curtis & perkins proprieters).the other is a rum and probably dates late 1700's-early 1800's.
There is a pontled Winslow's, up for sale, by the Southeast bottle club dude Reggie Lynch for $50. Just to give you an idea of value if it is pontled. Hope this helps.