You can see a better picture here. I mentioned its return on the Kantele Players Guild list and Jane Ilmola of 3 Rivers Kanteles mentioned that she had a link to a real pikebone kantele. From their website, click on the link for instruments, then click on the Martti Pokela collection. You can scroll down and see the boney kantele.
The pikebone is traditionally the source of the first kantele. According to the Kalevala, the runesinger Väinämöinen made the first instrument from the jawbone of a giant pike he and his cohorts had wrestled from the sea. Its strings came from the tail of Hiisi's mare. You can find a version of the tale here, and more about real pikes here.
Thanks, Gerry! I am so lucky.