Hello from a newbie,
I am a hone collector and user and have been following these forums with interest. I wanted to contribute my 25cents worth, so I became a member. I hope my posts are of use to others.
I came across a garage sale a while back, a old fella was selling his prized tool kit he collected over a life time. I seen this curious slipstone and asked the old fella about it. He said it's an old "Turkey" he has had for a long time. I've read about these stones but have never seen one, so I bought it for it's price of $2. Here are some pics.Stone is coated with WD40.