Antique Sharpening Stone in Custom Coffin Wood Box - PA Estate Find For Sale

Antique Sharpening Stone in Custom Coffin Wood Box - PA Estate Find
Very Good shape for age, did not try to remove stone as it'sreally tight, so I don't know how deep it go's? This is from old PA Estate, stone has some translucent quality to it, as seen on the edge, stone has a marble type look to it and is super smooth. See Photos
Overall Size is 11" by 2 1/16" by 2 7/8" highStone Top showing is approx. 8" Long by 1 1/8" wide.Weight of whole piece is 2lbs, 4oz