Cmonk2

Howdy everyone, I recently was given an old Bently model no. 4203 guitar to start learning guitar on, but it needs a little love before it'll be good as new again. Recently one of the tuning keys starting skipping the teeth on the gear. I was hoping to replace it with a new set of keys put I have been having a rather difficult time trying to find any replacements. I was hoping for some help trying to find replacement keys for it. Any help would be appreciated.