Carborundum Combination Sharpening Stone 108 Silicon Carbide 8x2x1 Vintage NY

Description

As pictured, Carborundum sharpening stone. I don't know much about it, sold as-is.
Stone appears to have had some use but I can't say for sure and this is not my area of expertise. Some residue to side.
Box has some tearing, rubbing, staining, fading, bends, etc.: still intact.
Thanks for looking--let me know if you have any questions.