I think it's a LEYDEN JAR, or at least the most durable parts of one.
https://www.google.com/search?q=static+electricity+jar+experiment&tbm=isch&source=iu&ictx=1&fir=Ua9D04P9qF843M%253A%252CahW7IKBXWqkqyM%252C_&vet=1&usg=AI4_-kQRpl9iqIGibIBdGnQCQ_oO6kGL5A&sa=X&ved=2ahUKEwi5yfXp-dDkAhVNeKwKHYsCBEAQ9QEwHHoECAMQDw#imgrc=Ua9D04P9qF843M:
Comments
I think it's a LEYDEN JAR, or at least the most durable parts of one.
https://www.google.com/search?q=static+electricity+jar+experiment&tbm=isch&source=iu&ictx=1&fir=Ua9D04P9qF843M%253A%252CahW7IKBXWqkqyM%252C_&vet=1&usg=AI4_-kQRpl9iqIGibIBdGnQCQ_oO6kGL5A&sa=X&ved=2ahUKEwi5yfXp-dDkAhVNeKwKHYsCBEAQ9QEwHHoECAMQDw#imgrc=Ua9D04P9qF843M: