Miniature Blue Slag Hen on Nest

Collectible, miniature blue slag (milk glass) hen on nest. Believe this is Heisey Company from the H logo on the nest. Measures approximately 4.5 inches across and 4 inches high. Look closely at photographs, as they are part of the description. There is some discoloration (spots) on nest, likely needs cleaning due to long-term storage. Also, there are imperfections on the nest around the rim. Unable to determine whether they are manufacturing flaws (one may be a crack in the dish, as you can feel a ridge when you run your finger across it).