Suzanne Bell, Imperial
Imperial made these contemporary bells in cobalt (Aurora Jewels), white, ice blue (Horizon Blue), purple, and yellow. Cobalt, white, and pink seem to be the most frequently seen and these sell for $15 to $25 on eBay. The much more rare purple and yellow are probably worth somewhat more.

in 2019, a blue bell sold for $10.

Updated 8/3/2019