Ruffles and Rings, Northwood
Not often seen without the Wishbone or Rosette interior. This is the only one I've seen or heard of and the only one to sell in recent years. In peach opal, a rare Northwood color, it brought $500 at a 1995 auction.

In 2020 a purple 8-inch example sold for $10. From what I could tell, it was like the one above.

Updated 4/10/2020