LENZ (E. VON): Die Waffensammlung des Grafen S.D. Scheremetev, plates, photographs of marks, original printed paper wrappers, 4to, 1897; HOFF (ARNE): Aeldre Dansk Bøssemageri, 2 vols, plates, original printed paper wrappers, 4to, 1951; STONE (G.C.): A Glossary of the Construction, Decoration and Use of Arms and Armor, first edition, plates, original cloth binding, 4to, 1934; STØCKEL (J.F.): Haandskydevaabens Bedømmelse, vol II only, reproduction of marks, original printed paper wrappers, 4to, 1943 (5)