Yixing 1980's "Shui Pin" "Please Drink Chinese Oolong Tea" Chinese Teapot

Colour: Purple 
Period: 80's
Marks: "Chinese Impot/ Export Cr-operation, FuJian Province Branch, Xia Men Branch " mark on the bottom, Number 10 on lip.
Size: L: 12.5 cm, W: 7.9 cm, H: 7.1 cm
Capacity: 150 ml (5.07 oz)
Spout: Single hole
Density(least 1 - most 10): 5
Suggested Teas: Pu-erh tea, Black tea and Oolong tea.
Condition: In good condition.