The Newhouse setting clamps are not marked with a name. The earlier ones do have the size embossed on them. The #4 and 5 size clamps in Muskrats photo are Newhouse but the larger, #6 size clamp is not, probably a Herters. Notice the long neck on the screw handle, the Newhouse clamps are short. I have not seen a Newhouse, tear drop #6 clamp, only #4 and 5. The ATC, Newhouse #6 size clamps all have the oval or round top.

The Newhouse clamps have a narrower spin on the back as well as a shorter neck on the screw handle.


Some Newhouse clamps, all but the tear drop #6 clamp, it is most likely Herters. Also note that on the steer horn clamps, there is a narrow model for the forged spring traps and a wide model for the machine spring that have a wider neck. In this photo, the #6 steer horn and the #5 next to it are the wide model and the #5 steer horn on the right is the narrow model. .