Lot of 3 Microscope Focus Blocks with Tilt-Adjustable 4.5" Section & 18" Mounting Poles

Lot of 3 Microscope Focus Blocks with Tilt-Adjustable 4.5 Section & 18 Mounting Poles

One of the microscope head mounting rings has a crack while its tilt-adjust knob is chipped, please see photos for more detail

Microscope head mounting rings measure 100mm in diameter

Focus block allows 90mm of vertical travel

Overall mounting pole length: 21

Chrome section length: 16.5, diameter: 30mm

Black section length: 4.5

Tilt allows 180