Frederik Marinus Kruseman – private collection. Title: Winter Landscape with Skaters on a Frozen River. Date: 1873. Materials: oil on canvas. Dimensions: 45.4 x 65.4 cm. Inscriptions: FM Kruseman./1873.fc. (lower left); le soussigné declare avoir peint/le tableau ci-contre original et sans/reproduction/Bruxelles 1873./FM Kruseman (on the reverse). Sold by Christie’s in London, on December 15, 2015. Source: http://vechnost7.blogspot.ro/2015/12/frederik-marinus-kruseman-1816-1882.html?view=snapshot. I have changed the light, contrast and colors of the original photo.