Arkansit oilstone in wooden case in size 150 mm x 50 mm. The stone is used to hone knives to achieve the finest sharpness. It is used with oil or petroleum.
The case has a size of 165 mm x 65 mm x 30 mm. It´s number 1352 in the old catalog of O.Langenhan. Manufactured before 1945.
The stone is new old stock. The wooden boxes have warped after many years of storage.
If you have any question, please ask.