Tracing of lines and sail plan of yacht "America" (scale 1:48) (made for the late Admiral Sir William Loring K.C.B. at Portsmouth in 1852) tracings
Tracings on cloth, plans and sections of Sennar Dam (1925) from originals lent by O. L. Prowde Esq: (1) site plan; (2) elevation and sections; (3) outlet channel for main Gezira canal Tracings on cloth
Tracing of design, 1 of 10, for four-cylinder petrol aero engine, designed by Sir Hiram Maxim, England, 1908-1909 Tracing of design for four-cylinder petrol aero engine 1908-1909
Tracing of design, 1 of 10, for four-cylinder petrol aero engine, designed by Sir Hiram Maxim, England, 1908-1909 Tracing of design for four-cylinder petrol aero engine 1908-1909
Tracing of magnetic survey (map) in Western Kansas, Map No.1 geophysical. Tracing of magnetic survey (map) in Western Kansas
Tracing of magnetic survey (map) in Western Kansas, Map No.2 geological. Tracing of magnetic survey (map) in Western Kansas
Tracing of design, 1 of 10, for four-cylinder petrol aero engine, designed by Sir Hiram Maxim, England, 1908-1909 Tracing of design for four-cylinder petrol aero engine 1908-1909
Tracing of design, 1 of 10, for four-cylinder petrol aero engine, designed by Sir Hiram Maxim, England, 1908-1909 Tracing of design for four-cylinder petrol aero engine 1908-1909
Tracing of design, 1 of 10, for four-cylinder petrol aero engine, designed by Sir Hiram Maxim, England, 1908-1909 Tracing of design for four-cylinder petrol aero engine 1908-1909
Tracing of design, 1 of 10, for four-cylinder petrol aero engine, designed by Sir Hiram Maxim, England, 1908-1909 Tracing of design for four-cylinder petrol aero engine 1908-1909
Tracing of design, 1 of 10, for four-cylinder petrol aero engine, designed by Sir Hiram Maxim, England, 1908-1909 Tracing of design for four-cylinder petrol aero engine 1908-1909
Tracing of design, 1 of 10, for four-cylinder petrol aero engine, designed by Sir Hiram Maxim, England, 1908-1909 Tracing of design for four-cylinder petrol aero engine 1908-1909
Tracing of design, 1 of 10, for four-cylinder petrol aero engine, designed by Sir Hiram Maxim, England, 1908-1909 Tracing of design for four-cylinder petrol aero engine 1908-1909