This mystery model of a horse, was discovered, during a house move. HOW OLD IS IT.!!!!

THIS MYSTERY SMALL MODEL OF A PONY, WAS FOUND SOME YEARS AGO, IN AN OLD HOUSE.
THE MEASUREMENTS ARE 7" IN LENGTH X 6" HIGH X 2" IN WIDTH.
THE EYES ARE OF VERY SMALL PIN HEAD GLASS EYES , AND HAS BEEN HAND MADE. THE WEIGHT, IS QUITE HEAVY FOR SUCH A SMALL MODEL, 0.75 of A KILLO.
THE MATERIAL, IS I THINK POTTERY, ALTHOUGH IT IS VERY HARD TO EVEN SCRATCH THE SURFACE WITH A STANLY BLADE, OR FILE, SO THIS SEEMS TO INDICATE SOME OTHER MATERIAL, OR AGE. PERHAPS, SOME ONE COULD RECOMMEND A WAY OF SOLVEING THIS MYSTERY.!!!!