Centerboard Winch

I recently became the happy owner of Douglas #1922. Interesting enough the top of the centerboard bean, on top, just after of the number has an original winch installed slanting forward. It is a real head scratcher. it is original because the slanted part is part of the beam with the hull number. It looks perfect for someone who wants to have bruised knees and shins while racing. Has anyone else seen this before? It can't be for the centerboard line since it snags itself if you use it while pulling up the board. Jack Corcoran