BONAVENTURE LENART. Conservation of the antique book and its binding. Vilnius 1926. the Vilnius Circle of the Union of Polish Librarians. Print. Print. Polish Circulation Printing House "Lux". Engraved by the zincographic plant of F. Zaniewski. Format 15/22 cm. p. 19, [1]. Broch. ed. Losses of upper margin of top cover and first pages. The Vilnius Circle printed for the Second Congress of Polish Bibljophiles in Warsaw, held from October 31 to November 2, 1926.