Newport model U100-A3H Ultima 1.0 inch mirror mount, clear edge, 3 Locking Allen-keys
Used mounts in in good working condition. The adjusters were sealed with a dab of thread-lock. This is easily removed by backing out the lock and adjuster a little bit and cleaning the threads with a cotton applicator and acetone.
Specifications:
Mechanism:            Kinematic
Optic Diameter:       25.4 mm
Adj Screw Thread:  100 TPI
Adjustments:           θx, θy, Z
Sensitivity:               3.8 arc sec
Angular Range:       ±7°
Material:                  Anodized Aluminum
Drive Type:              Allen-Key, locking
Mount Thread:         8-32