Query: Klavdij Petrovich Stepanov - Posol'stvo Cemodanova

Although I am not a member of this mailing list, I wondered whether it
would be possible to post a query on it such as the following. I am
Stefano Villani, a lecturer in Early Modern History at the University of
Pisa and I am finishing an article on "Russian ambassadors in Tuscany in
the seventeenth century". On the web I have found many biographies of the
19th century painter Klavdij Petrovich Stepanov (1854-1910) in which a
painting of the 17th century Embassy of Chemodanov in Florence is
mentioned (Posol'stvo Cemodanova vo Florencii, vo vremena carja Alekseja
Mixajlovica, 1887; cf. for example
<http://www.rusinst.ru/articletext.asp?rzd=1&id=6387> or
<http://www.rulex.ru/01180483.htm>).
Is it in a museum or in a private collection? Is there a published
reproduction of it somewhere? Any help would be greatly appreciated. My
E-mail address is svillanigmail.com.

With many thanks for your hospitality,
Stefano Villani