Pressed hobnail bowl. The original design included the hobnail rim and the flower stems and centres. The petals have all been added by wheel cutting (I think), and the hobnails have all been cross-hatched.
The base is similar to a Tudor rose, but with 6 segments, not 5. The only match to this that I know is on pieces thought to be by Bagley, such as the fish scale plate.
Any ideas, please? Any chance it might be a Bagley Crystal Company piece from the 1910s?