On the left is a typical classic era Grape and Cable tumbler. On the right is one made by Joe St. Clair. Note the differences: The St. Clair is shorter, has no indented band below the rim, and the "thumpbrints" are more distinct. They were made in red, blue and white, some marked, some not. Worth about $10. In 2008 on eBay, a set of six red tumblers sold for $43.

In 2016 a red tumbler sold for $15.

In 2019, a Cobalt tumbler sold for $15 and purple, red, and white brought $5.

Updated 7/16/2019