Shamrock-Neatway mixing bowl. I don't know much about it except I think it used to be part of a set, I remember a matching strainer that I couldn't find after my mom passed. Any info in helping to date is more than welcome. : r/BuyItForLife
Vintage Set DELPHITE Blue Swirl Mixing Bowls PLASTIC Shamrock-Neatway USA | #1810591248