The first two are Conularia pyramidata found in France, I think from somewhere in Normandy. They are from the Silurian Period.
This last image of four fossils are of Ordovician Period Conularia anomala from Czechoslovakia.
Here is a poster that was in the museum describing Conulaires (Conulariida?). I have yet to translate it. The image of the little stalks with beads at the end protruding from the top of the Conularia is interesting.