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