Image is featured on both sides of the cup, and is created with a handmade stamp. 
3.75 fl oz
Round rim 
Square Bottom
2 1/2 Tall
2 1/3 -3" Round 
3 3/4 Wide (includes handle)
Sized vary slightly from piece to piece
Handle size varies slightly from piece to piece,  accomidates a single finger, and is square
Food safe
Oven safe
Microwave with caution
Dishwasher safe
Hand wash recommended