I found this in the Blenko catalog from 1959 they called it a bowl #596 but had flowers in it so could be a vase. Wonderful color style they are known for.
It is 7" high 6 3/8" at the rim 3 3/8 at the base no damage. The item "Vintage Mid Century Blenko Glass Bowl Vase #596 Aqua 1959" is in sale since Saturday, July 7, 2018. This item is in the category "Pottery & Glass\Glass\Art Glass\North American\Blenko". The seller is "brawhom" and is located in Montrose, Colorado. This item can be shipped worldwide.