Orchard Bordered by Cypresses (1888) by Vincent Van Gogh: 9 cm x 6.5 cm x 0.3 cm; bought from the National Gallery of Victoria, Melbourne, Australia

A Wheatfield with Cypresses (1889) by Vincent Van Gogh: 9 cm x 6.5 cm x 0.3 cm; bought from the National Gallery of Victoria, Melbourne, Australia

Cypresses (1889) by Vincent Van Gogh: 8 cm x 5.3 cm x 0.3 cm; bought from The Ueno Royal Museum, Tokyo, Japan

Portrait of the Postman Joseph Roulin (1889) by Vincent Van Gogh: 9 cm x 6.5 cm x 0.3 cm; bought from the National Gallery of Victoria, Melbourne, Australia

Impression, Sunrise (1872) by Claude Monet; 9 cm x 6.5 cm x 0.3 cm; bought from the National Gallery of Australia, Canberra, Australia

Portrait of Irène Cahen d'Anvers / The Little Girl with the Blue Ribbon (1880) by Pierre-Auguste Renoir with Gold Metal Frame: 5.7 cm x 4.6 cm x 0.4 cm; bought from the National Art Center, Tokyo, Japan

A Lady Writing a Letter (1665) by Johannes Vermeer: 7.8 cm x 5.7 cm x 0.3 cm; bought from the Osaka Art Museum, Osaka, Japan

Self-Portrait with Cropped Hair (1940) by Frida Kahlo: 9 cm x 6.5 cm x 0.3 cm; bought from the National Gallery of Victoria, Melbourne, Australia

Leichtes (Light) (1930) by Vassily Kandinsky: 8 cm x 5.3 cm x 0.3 cm; bought from Shanghai Art Museum, Shanghai, China