oil paint was the medium for this . The painting Girl Reading a Letter at an Open Window is 90.5 cm by 33.0 cm and 370.0 inch by 11.7 inch . It is located in Louvre, Paris . This was painted in 1657 . The artist of Girl Reading a Letter at an Open Window was Warner Sallman
Girl Reading a Letter at an Open Window was painted in the year 1665