This is a set of four small, crystal tumblers or spirit glasses. They're etched with a pattern in the style of "Pall Mall".
They're hand blown with subtle variations and made from a thin glass, with fluted rims and faceted body beneath the etched panels.
They were made during the early part of the 20th century.
If you have any questions, just send an email to help@3bcshop.com.