Documents and a letter collected by Elena A. Popandopulo: a 1728 Italian military commission signed by Salvator, Duke of Sforza; a 1729 petition signed by Aleksandr Stroganov; a blank sheet of official document paper from the time of Tsar Nicholas I; an 1861 Russian document; an 1879 document signed by Tsar Alexander II; and a 1906 letter to a Countess Ekaterina Aleksandrovna concerning an art exhibit in the Tauride Palace.