An antique treen snuff spoon,it  is made from ebony, note on this example the perforsted holes in the spoon bowl and all the way up the handle. 
I came across an C 18th quote that reads, ‘to such a height with some is fashion grown, they feed their very nostrils with a spoon’. This refers to snuff spoons and the fashionable habit of sniffing snuff.
These little snuff spoons were made in a variety of materials. From silver, bone, and, more rarely wood. They were a fixture in many homes and were often placed on the dining table so that snuff could be taken after dinner, by both men and women.
The user would extract the snuff in the right hand and place the snuff on the back of the left hand to be sniffed . There is a record in an issue of Household Wares1853 where it states “the early snuff takers did not snuff by pinches but by toasting the tobacco leaves, grinding them to a fine powder and using a heaped snuff spoon to sniff , by the 1850s few people were inhaling snuff by the spoonful.