A small antique turned barrel grater which has a metal grater disc  attached to the inside lid. It may well have been used for tobacco , the base  is charred where it has probably been used at some stage as a pipe tamper.
Illustrated  in Dr Reckless's book on nutmeg graters and spices, on page 266 and formerly part of the Dr. Reckless collection.
It measures 4.3cm h x 1.8cm w.
c1850