The aircraft was probably used for training needs. Pilot por.Jan Maletski crashed when flew this aircraft on 26th March 1920 in Torun. It is hard to say if series numbers and type description were painted on bottom surfaces of wings. It's quite possible there were no numbers there.
Poland | Military
Addition: Rudder of Nieuport 23C1, N2860. Later In 1918 this airplane was transferred to 1st Polish-Lithuanian KAO with its pilot ensign Volsky. Look Russian Empire section.