Walking the beaches we find more green and blue glass, have never seen orange like this before, will be on the look out in future.
Did not realize people put value these rumbled tumbled old pieces and not very often have a actually kept them, live and learn something new every day.
With all the "upcycle" and "recycle" movements, it was not long before people started using sea glass for jewelry making and small pieces of art. And once that happened, it also started to get enough attention that some people just started collecting... often trying to figure out where something had originally come from.
Of course, once you have "collectors" you also start having "trading." And with that, buying and selling.