The mysterious object - Castello di Niella Tanaro

How many things do we no longer use that used to be the norm? The artifact that you see had a specific use and was found in a room during the restoration of the castle.
We would like you to participate in the discovery of this object by asking you what do you think was its use?

Here’s a small clue: the longest part is about 2.5 cm long while the head or top is 2×1 cm.

If you think you guessed what use this object had, fill out the following form and your name will appear on the list of winners in The Castle’s Book !