Set of 3 Federal Mixing Nesting Bowls.White milk glass

Set of 3 Federal Mixing / Nesting Bowls.White milk glass.The bowls are vintage in excellent condition with very little signs of use.They measure 5" ~ 7" ~ 9" in diameter. On the bottom is the "F" in the shield logo and the words "Heat Proof" and "USA." $25/set plus shipping.I need to know the zipcode to estimate shipping cost.