Here’s a close-up view of a proven/known unlabeled light green Thuringian razor hone. The striations from lapping are still visible, but you can see similarities between this stone and ‘alleged’ Thuri on the previous page.
Each black or white bar in the reference scale is approx. 10µm wide.
Objective – Neo Splan 5x
Relay Lens – 2.5x
Illumination – Reflected Darkfield with Off-Axis Fiber-Optic