This is a vintage Akro Agate child's toy teacup in jadeite green glass.
Material: The cup is made of slag glass, specifically a jadeite green milk glass.
Design: It features a concentric ring or ribbed design around the body.
Origin: The Akro Agate company was founded in 1911 in Akron, Ohio.
Era: These child's tea sets were produced in the 1920s and 1930s.
Purpose: It is part of a miniature tea set designed as a toy for children or dolls.
Collectible Only. Not for childrens play use.