This is a cast steel bell. I am not familiar with this company. The bracket appears to have been fabricated from a broken yoke, and a wall mount plate welded to the bearing of the half-yoke. This would put considerable weight on the cantilever and would likely pull screws out of a wooden post to which it was mounted. The lack of a ring on the clapper suggests that this was originally manufactured to be a rocking bell and not a stationary mounted post bell.
Harry Long, MD