A 9 by 2-1/2 inch low ruffled bowl in the number 473 Grape carnival pattern by Imperial Glass, introduced in 1910. The color is Helios Green, an apple green base with an iridescent coating of gold and silver. This is an original piece, not a reproduction. Imperial did reissue this pattern in Helios from 1967 to 1970, but all reissued pieces were marked IG or LIG on the bottoms. This bowl has no mark. There is a chip on the base, highlighted by a red arrow in the second photo.
Imperial Grape Helios Green Ruffled Carnival Glass Bowl