Etching is on a pink 7" 3-footed mint Line 310-1/2, which is pictured on page 345 of "Colored Glass of the Depression Era, Book 2" by Hazel Marie Weatherman.
U.S. Glass
The etch is obviously not representative of the herb rosemary and documentation of it as a Tiffin etch has yet to be found. (A documented Rosemary cutting by Tiffin does not look anything like this etch.)
