wet sharpening, grinding, polishing stone, 25"x 1 3/8", fine grid, hard - $490 - (Benld, IL)

This is almost 100 Yrs. old fine grid 25" diameter and 1 3/8 " thick stone used in Shuron Optical Co. This is fine grid and is very hard.Please check pictures. Let me know if you need more detailed pictures. Call 618-2250-9917