Sid Lethbridge of the ChatAboutDG forum and Glas Fax has given me some good info. My little plate has a definite ring to it (when flicked), so Sid says that it's lead and suggests that it is "lacy glass" which pre-dates EAPG. He suggests that I look at UK & European makers such as Molineaux, Webb and Baccarat (and any others). Given this info, is there anyone here who has a special interest in such glass (1840s & 1850s lacy glass)? I am of course doing my own delving but any extra info would be great, even if it's to tell me where NOT to bother looking.
Many thanks!
Nancy