- Hoschton, Georgia, United States
- US $85.00
- Jan 30th
Both sides checked as you can see. The scratches you see are on the reference test flat not this flat, which is in excellent condition only a few faint scratches on both side. FYI, 1=reference grade, 2=master 3= working, and since even the optical flat can never be truly flat C=concave and V= convex Working .000004" Master .000002" Reference .000001"