I am still looking for some help with these, so I took a group photo. I would like to draw attention to the fact that none of these are exactly the same. Some have wider stems, some have crooked stems, some have different markings on the bottom. When I washed one I ran my finger around the rim with little to no pressure. It screeched very very loudly. I am not sure if this means they are crystal??
Can anyone help me by stating what to look for, what would make these old/unique? How can I find out more about these. Thank you sooooo much!!!!