We found these Parts:
D1525.14 - Center Column Tude
Center Column Tude
D1525.C - Center Column
Center Column
D1548.JB - Rubber Ring Set
Rubber Ring Set
D1576.07 - Tilt Locking Knob
Tilt Locking Knob
D172.04 - Graduated Base
Graduated Base
D172.137 - Fixation Screw + Nut 3/8
Fixation Screw + Nut 3/8
D175.116 - Screw and Washer
Screw and Washer