I don't see a makers mark, but after scanning the internet, I believe it is made by Dugan. It is very pretty.
Vintage Carnival glass Tumblers Diamond and GrapesJain glass Rare Collecti#45 F
Vintage Carnival Glass Tumblers Beaded Panels & Grapes Jain glass Works Indi#24F
Vintage Carnival Glass Tumblers Beaded Panels And Grapes Jain Glass Works #33 F
Vintage Carnival Glass Tumblers Mae's Daisies By Palliwal Jain glass Works #F 23
Vintage Carnival Glass Tumblers Beaded Panels and Grapes Jain glass Works #64F
