Jun 10, 2021 · American milk glass is a popular collector's item that primarily dates back to the turn of the 19th century up through the 1950s. It is also called clambroth glass, resembling the color of the milky, translucent cooking liquid. This delie, white glassware was used to make items such as bowls, mugs, candleholders, and more by Westmoreland, Fenton, Indiana, and other glassware companies.