Found 10's if not 100's of these bottles at a dig site that contained household items exclusively. I have a few that have fragments of the label, but I couldn't decipher any of the wording. I can say that the label appeared to have different shades of blue (from dark blue to baby blue), with black lettering. The shape of the bottle is somewhat distinctive and maybe someone has run across it before. I'm inclined to lean towards some kind of household cleaner? I'll post another picture in a reply to this posting that shows a raised design on both sides that is most likely for gripping the bottle. Any ideas?