Bantam Rooster is the original Heisey Company name. The pattern was made in 1951 in Crystal only. The stem was made for use with the #4225 Cobel cocktail shaker and the #4036 Marshall cocktail shaker with rooster head stoppers.
Morgantown made a similar stem. The Heisey Bantam Rooster stands more upright with the head incorporated in the stem.