Stoneware made in USA in 1997. Stamped "Hartstone" on the bottom along with date.
Vintage Hartstone Pottery Cherries Jubilee Stoneware Bread Loaf Pan Made in USA
Vintage Hartstone Pottery GINGERBREAD 10.5" Muffin Pan Holly Christmas 1982
1980's Hartstone Pottery Muffin Pan ~ 6‑Cup Cherry/Apple Design Stoneware ~ USA
Vtg Signed Hartstone Pottery Provincial Posy Muffin Pan Stoneware 6 Cup Heart
