Model 926 Mouse Adaptor includes a nose and tooth (palate) bar assembly with zygoma ear cups.

Dorsal/Ventral adjustment dial – Calibrated in 100 micron increments, 1 mm per revolution.
Dorsal/Ventral adjustment – 30 mm
Dorsal – 10 mm above ear bar zero
Ventral – 20 mm below ear bar zero
Coronal adjustment – 35° (5° graduations)
Adaptor Plate A/P adjustment – 44 mm
Ear Bars – Model 921 Zygoma Ear Cups.
A set of (.305″ dia.) serrated and soft tissue cups included.
(6.3 mm square w/ 35 mm of calibration).

Model 921-E & 923-B compatible with 900, 1430 & 1730 series frames. Model 926 compatible with 900 series frames.
Model 1226 compatible with 1430 series frame.
Model 1726 compatible with 1730 series frame.