Froom Spinners sold to VECO, then to K&B, then to Fox. The Fox spinners you see today are the last of the VECO line, BUT heavily modified.
Froom Spinners were spun, After VECO bought them, they started die casting everything including the pointed spinner tip. After Fox bought them, the pointed spinner tip was done away with and replaced with a machine screw. Some Fox spinners were die cast, and some were machined from bar.