I can't say for sure, but it does resemble Blenko ashtray designs.
Vtg Amber Art Glass Cruet Decanter Stopper Hand Blown Empoli Style Bubble Glass
Vtg Murano Art Glass ~8x6.5" Ash Tray Amber Clear MCM Sommerso Collectible Glass
Vtg Blenko Art Glass Amber Amoeba Ashtray Trinket Dish 8.5"x1.5” Mcm
Vtg Murano Art Glass Seashell Blue & Amber Ashtray Candy Dish
Fenton Amber Art Glass Basket Ruffled Edges Handle Candy Trinket Vtg 5.75” Pair
Vtg Pilgrim Art Glass Owl Paperweight Amber 3" Tall Handblown
