Baltimore Arms Co., initiated in January 1900 and ending business in October 1904, was a "predecessor" to A H Fox Gun Co. Ansley Fox was involved in the business, but was mostly preoccupied with competition shooting at that time. The Fox Gun Co., Baltimore used a patent issued to Frank Hollenbeck.
Ansley Fox was granted a patent for his new gun design in December, 1902. Philadelphia Arms Co. was incorporated in November, 1902.
Both of these companies were heavily influenced by the presence of Ansley Fox, IMO, and could be considered pre-Fox, because the "true" Fox was the A H Fox gun, which was taking shape 1904/1905 and became the Fox that we know today as the A H Fox, in all it's grades, and Sterlingworth.
For much more in the business maneuvering that took place between Baltimore Arms, Philadelphia Arms and A H Fox Gun Co., you should purchase a copy of A H Fox by Michael McIntosh. My brief summary may even be slightly inaccurate, but the whole history can be mused in the book.
SRH
