Grape Peelers are a difficult topic to raise, without inviting comments from every wiseacre in the crowd.
They are used, as the name implies, for peeling grapes. The part of them that does the peeling is a half-moon shaped blade about 1 inch (2 1/2 cm) long, that looks like a scythe. It’s attached to a straight plastic handle about 4 1/2 inches (12 cm) long.
Victorians popularized them; theirs were made of silver.