VTG 50s 60s Mid Century Marcrest Pottery Pink Pitcher Ball 2 qt Oven Proof 8"

VTG 50s 60s Mid Century Marcrest Pottery Pink Pitcher Ball 2 qt Oven Proof 8" Pink ball pitcher Holds approx 2 quarts (1.89 liters) No chips, cracks, crazing, etc. Two small faint yellow colored spots on one side near handle There is a some type of hard residue, it feels like lime/mineral build up. Almost like some floral foam was at the bottom with water and flowers. I soaked in hot water/vinegar mix, but it did not clean it. Don't want to attempt anything else in fear of damaging it Will leave up to the buyer to attempt or leave as is. Approx. measurements: Tall 8" (20 cm) Wide: 9" x 6" (23 x 15 cm)