Lippincott's practical primary arithmetic. Book 1,2. By T.C. Bruff, C.H. Hayden, L.E. Watkins.T. C. Bruff1915EN
A descriptive catalogue of the Ordnance Museum; Department of Ordnance and Gunnery; U.S. Military Academy; prepared under the direction of L.L. Bruff ... by John T. Thompson.United States. Military Academy, West Point. Museum.1898EN