Every effort has been made to trace and contact copyright holders. If there are any inadvertent omissions we apologise to those concerned, and ask that you contact us so that we can correct any oversight as soon as possible.

Image Credits

The Fersman Museum
The Royal Collections
Richard Valencia Photography
Paul Raeside Photography
Neil Spencer Photography
Swedish Royal Collections
Christies, London & Paris

Thanks

Sotheby’s, London
Hillwood Collection, Washington
Uppsala Auktionskammare, Sweden
Dolmabahçe Palace, Istanbul
Philip Hewart-Jaboor FSA
Kiev Museum of Russian Art
And many private collectors