Vintage White Circular Kitchen Mold Swirl Pattern Ironstone? Amazing condition

- Vintage Mold or Mould - Shape: Circular - Raised or Stemmed Center with straight flutes - Swirled flutes around the outside - Diameter: 7" - Height: 3 1/2" - Not sure if this is ironstone. Unlike most I've seen, the top edge of the mold is not glazed. MARKS: None that I could find CONDITION: Remarkably good condition. No cracks or chips. A little discoloration at top of the center stem and I found two tiny brown specks. One on the inside right next to the stem and the other on the outside near the rim. There are some minor use marks on the outside near the cone shaped hole. See last four pictures, 3 of which are 5 times magnified. Questions? Leave a comment below!