These are real fossilized dorsal spines of prehistoric Drum Fish (Sciaenidae)!
Found in Florida and dating back ~5 million years, these ~2.5-3" spines would make a great start or addition to any collection.
PRICE IS PER RANDOMLY-SELECTED SPECIMEN. These photos are representative of the variation you could receive.
They come in a ~4.25" wide riker frame.
We can ship them worldwide.