Unmarked
Very Good, Vintage (antique?) condition- no chips, cracks or scratches.
Pattern is crisp and well-defined.
Glass is bright and clear- no sickness. Cobalt blue is strong and consistent.
Not sure if original King Glass Company piece or a more recent reproduction. Use your own judgement.
Measures about 5 " long by about 4 1/2" across widest point by about 2 3/4" deep.