Fifty years of progress : a sketch portraying with pen and brush the past and present of a successful business (1898)
William Mann Company · Philadelphia : W. Mann Co. · leaf 60
the process a perfecting one. In pen-ruling machines the pens, which are a special device, are carried in a clamp, and receive ink from a piece of flannel saturated with the color. At each end of the machine are two wooden rollers, around which revolves a web of moleskin cloth, a series of cords…
William Mann Company · Paper industry -- Pennsylvania -- Philadelphia -- History · Stationery trade -- Pennsylvania -- Philadelphia -- History · Printing industry -- Pennsylvania -- Philadelphia -- History · Blank-books -- History
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
