At a local show awhile back, stumbled across one of these. I knew that it was out of the ordinary, but couldn't put it together at first. WTP's have never been common, where I reside. The lack of German proof marks, finally jogged my memory. And I realized what it was. Thought about it, but between the pitting and price decided against it.
The pitting and general wear, suggested to me that it was carried in someones pocket for personal protection for quite awhile.