Ancient Throwing Stone or Tool? greyhound plate 13 1/4" x 9 3/8"

13 1/4" x 9 3/8" x 3 1/8"

in the South of France

Resignation

with calendar pages torn off and some scattered smudges and small stains

and then (I think) feet of sorts carved at bottom

Ancient Throwing Stone or Tool? greyhound plate 13 1/4" x 9 3/8"I purchased this from a wonderful dealer in New Hampshire whose cabinet of curiosities includes objects decommissioned from museums and science departments as well as gathered from estate collections all over. She didn't know the origins of this stone and neither do I, but it sure looks like a throwing stone to me! If not certainly used as a tool of some sort, with a couple of divets on the bottom one just the right shape for a thumb gripping it.