Is this a bottle corker ?

[JackieMac]

I found this odd wooden thing yesterday tucked in the back of an old cupboard. It looks very old and well used it's made of hardwood and has a hole in the bottom about the diameter of your small finger, the handle on the top has what looks like a broken spring attached to a piece of dowel which goes up and down.

Someone said it could be a bottle corker, what do you think it is ?

It certainly looks like a bottle corker to me. We have a more modern one but it is definitely very similar.