Interesting club (I hope)

[Atlantia]

Why oh why have I started buying these thrice damned things?

Here's my latest.
Appears to be some kind of bashing impliment.
Solid (and I mean SOLID) ancient seasoned Oak.
Like it was turned from an old ships timber.
Not rounded or flattened on the end enough to be a pestle.
Too big and heavy to be a rounders bat, too short for a baseball bat.
Lanyard hole appears to be contempory with manufacture.
Length 55cm, weight 1kg. 6.5cm wide at the end.

Any thoughts?