Linn's Mums - Northwood
According to Dean and Diane Fry, there are only two of these ruffled amethyst bowls known. They were named after Linn Lewis who uncovered the first one in the early 1990s. They're 8 1/2 inches in diameter and have Northwood's Ruffles and Rings exterior.

Photo courtesy of Dean and Diane Fry.