This is a Agro delft cobalt blue on white decorated small tin canister, decorated with four different windmills. The windmill scenes are labeled Zomer, Lente, Herfst, and Winter. The tin is 4" wide and 4 1/4" tall. The base is marked Agro Delfts Blue Holland 603.
Agro Delfts Blue 603 Tin Canister Small Windmills