I think they where used to sell bleach or ammonia in the 1960’s. They have a tendency to not be solid colors and have nice streaks of darker colors and clear patches. They also come in a pretty purple and possibly other colors like amber.
Hello to this thread. Make sure you know the Wheaton mark. They have made a lot of different ones and don't always have their name on them. You didn't show your mark so I can't be of much help. RED Matthews