Antique pearl sadler small pink milk or cream jug. The research I have done shows this to be by renowned pottery maker Sadler founded in the 1880s by James sadler in stoke on Trent. It was probably part of a larger tea set but very collectible and I believe rare. The makers mark on the base dates this to c1937-1947.  This one unusually has flower decorations to sides ( normally they are plain) some age related wear and unfortunately the sadler makers mark on bottom is worn but you can just make it out 14 cm wide 9 cm tall 8 cm width