I'm in a bind with this jar. I found it in the woods like this, with contents still inside. I don't know what is in it. Maybe apple butter? Anyhow, the lid is completely stuck. Nothing I've tried has worked. I'm about ready to get a Dremel tool and cut the lid off. But there's risk in damaging...
I just picked up this Anchor Hocking Commemorative Bottles book on Ebay at a great price. Lots of color photo examples of bottles in it, including info about the Royal Ruby Red series. I call it a dream book, though I do own some of the bottles in it. There's even price estimates on the bottles.