I have no idea, snake oil maybe.
Seriously, it's a cool bottle though, I love digging in old bottle dumps you never know what you will find.
Kevin
I had a buddy back in NJ that actually mined an old town dump, timbers and all.
He sorta got me interested in old bottles.
Bubby, thanks. I'll post a photo. BTW its just has one seam including the
neck and rim. And I guess the stopper could be a cork or rubber that
hardened up without shrinking??
Timbo I did rub it--third pic.

Paul The old clorox bottles were amber. The bottoms make nice arrow points.
thanks again guys,
Zuma