. This is an Air Table (Self Leveling ) with a Newport Optical Breadboard.
Overall Measurements 35 x 56 x 49.25 Anti Vibration Table OD 35 x 56 x 33 ID Usable 28 x 50 with 35 x 24 Breadboard at one end. One 9 Dia Through Hole in Breadboard and Two 9.75 Inch plus One 3 Through Hole in Table for Mounting Chambers, etc. Vacuum Chamber OD 21.75x19.75 ID 20x17.5 X Y Axis Stage in Vacuum Chamber 9.25 x 8.25