Vintage Stackable Blue Sugar and Creamer ~ Russel Wright China by Iroquois.  No chips or cracks - in excellent vintage condition.  Such a pretty mid-century shape.  Sorry - photos don't do justice to the pretty Tiffany-blue color.  Thank you for looking and please email me with any questions.

Dimensions:

4 1/2 " Tall

2 1/2" diameter at sugar bowl base

4" diameter at creamer base

2-1/2" diameter at spout opening