Depression Glass
I have found many shards of depression glass on the Folly. They date mostly from 1929 to 1939, from the Depression Era. This type of glass was very cheap to make because it was moulded. It was made in interesting colours and patterns. It was cheap to buy, sometimes the items were given away for free. It was produced in America and Canada.
How to spot Depression Glass? Air bubbles in glass and visible seams. If you check out the ShardArt above, you will be able to see both.
https://www.thesprucecrafts.com/closer-look-at-depression-glass-147962
