Handle-less 18th-early 19th century clear British jelly glass.  These are used for dessert jellies (the forerunners of our modern Jello) and flummeries. 

Jelly glasses work well for syllabub too.

5" tall, 4 ounce capacity.

This is a new handblown replica of old glass, not an antique.

Handblown in the US.

Not intended for hot liquids. Hand wash only, with warm soapy water.

By mid 18th century the dessert pyramid began to be used in well-to-do households.  Various sized tazzas were stacked, with each tazza layer containing full jelly glasses, fruits, and other dessert treats.