Beautiful French antique transferware terre de fer (ironstone) sauce boat. 
It has an oh so delicate pattern and some beautifully aging marks. Inside the rim are some old chips with 'tea staining' around them. 
Makes a super vignette prop and is perfect for a flower arrangement, I used a glass Quintessentially French flower frog to arrange them.  

The sauce boat measures 21cm 8.25" lomg and 10cm or 4" bith wide and high. 

Antique French Ironstone saucière or sauce boat