They were at 1230 Majestic Building. In 1905, they offered their 4-cylinder, 24 HP Hammer Touring Car for $2,500 and were out of business by 1906.

Hammer logo.
Hammer logo.
1905 Hammer "Touring Car" ad.
1905 Hammer “Touring Car” ad.
1905 Hammer ad.
1905 Hammer ad.