Indiana Glass Company introduced the Mount Vernon pattern in 1968, and production ran until approximately 1987.

This specific "Olive Green" or "Avocado Green" variant was part of the pattern's initial launch wave in 1968 and remained highly popular through 1980, making this dish most likely a product of the late 1960s or 1970s. The colonial revival design style and the choice of avocado green are classic hallmarks of that mid-century era.

Please see pictures for description, condition, and measurements