I just bought an old fork + knife set at a flea market. The kind of big cutlery that is used to cut and serve chicken, roasted meat, whatever.
The strange thing is that the fork has a moving part on the top of it. I don't know how to describe it, so here are the photos. This thing can be put up or down, and it doesn't have any spring, but it can stay in position (for both positions).
What is the purpose of this? I have never seen such a thing before.
For information, this was found in France, and the set is probably 50 years old or so.