Author: Poul Nadar (1820-1910)
Owner: French photographer Poul Nadar (1820-1910)
Location: Khiva, Uzbekistan
Link to: Website
If this photo was taken in 1890 that means that Khan of Khiva (Khoresm) in that time was Muhammad Rakhim-khan II (1845—1910) — the 11th ruler from Uzbek dynasty of Kungrats in Khivan khandom with years of his ruling 1864—1910.
More details about him are in Russian in Wikipedia:
The FHT aims to establish a portal for the world's falconers and other interested parties to access aspects of the sport's rich heritage by linking existing physical archives, including international private and public collections, through the medium of an electronic archive. This archive will feature falconry furniture, works of art, books, correspondence from leading falconers and film and photographic material for the education and interest of falconer and scholar alike. We hope that, whatever your background or interest in our sport, you may find something of value through our archive to deepen your knowledge, understanding and passion for falconry and will help us, through your support, to preserve this precious cultural heritage for future generations.
Falconry Heritage Trust
Phone: within the UK (01267) 233864
and from abroad +44 1267 233864
Fax: within the UK (01267) 233864