This is a typical porcelain shoe made by Royal Bayreuth around the 1870's - 1920's, but has no mark.
Royal Bayreuth Girl With Basket Creamer
Vintage Royal Bayreuth White Satin Finish Clown Ashtray
BEAUTIFUL ROYAL BAYREUTH ROSE TAPESTRY HANDLED BASKET IN PERFECT CONDITION
Antique Royal Bayreuth Miniature Porcelain Boot Tan Germany
Vintage Royal Bayreuth White/Lavender Oyster & Pearl Demitasse Cup & Saucer
Vintage Joe Rice St. Clair Blown Glass Navy Royal Blue Perfume Bottle Scent Art