Holtzapffel and Company
RA Collection: People and Organisations
Engine, lathe and tool manufacturers, in London.
A New System Of Scales Of Equal Parts, Applicable To Various Purposes Of Engineering, Architectural And General Science. Illustrated by a fac-simile of the Scales on Copper Plate. - By Charles Holtzapffel, Associate of the Institution of Civil Engineers. - - London:: 1838.