This shade of green is often referred to as “Heinz” because of the 1953 baking dish of the same color that was offered as a promotion in connection with Heinz products.  

While the ‘Heinz’ baking dish is relatively easy to find, other bakeware items were also made in the distinctive forest green color.  These pieces range from hard-to-find to rare.  My collection is still incomplete - I am on the search for the 209 'Heinz’ Pie Plate.

Pictured from l to r: 525 Hostess with Lid, 515 Hostess without Lid, mini bowls (thought to be test pieces), 221 Cake Pan, & 024 Round Casserole.