Snuff spoon
A snuff spoon is a tiny spoon used for nasal insufflation of powdered substances. Historically, such spoons were used for psychotropic substances in pre-Columbian America, then tobacco in the 18th century, and cocaine in the 20th century, hence the names cocaine spoon and coke spoon. Some local statutes in the US treat spoons that are too small and thus "unsuited for the typical, lawful uses of a spoon" as drug paraphernalia.
These spoons are so small that they are frequently mistaken for the toy ones. The designs of the snuff spoons closely followed that of the larger ones, and thus can be used to date the étuis containing them.