Sundae float dish?  Relish or celery dish?  Whatever your use or need, these vintage Hazel Atlas glass dishes are gorgeous!  
 
Rounded rectangular shape with mid-century oval-within-rectangle details at base
Capri Blue or Eggplant
Set of 4
Excellent condition, small hairline on one blue dish (see photo)
9.5" x 4.25" x 1.5