VTG Merlin Wizard Castle Mug Unglazed Pottery Ready to Pain Ceramic Art Craft

Ceramic Mug Merlin or some other wizard motif with stone wall, trees, and a castle. Very small details. No chips or cracks noted. Rough spots under handle, but could be sanded down in current state before paint or glaze. Approx measurements: 3.5" (8.75 cm) tall 5" (12.5 cm) wide at handle 3" (7.5 cm) base