Putnam, G. R. (George Rockwell), b. 1865 · New York, J. Wiley & Sons; [etc.] · leaf 108
Because of changes in aids to naviga-tion and other corrections, it is usually desirable toprint at one time only a sufficient number of copiesof a chart to meet current demands, and not to carrya large stock on hand. The copper plates, bassos, and altos make a veryconvenient and enduring means of… … FIG. 30. PRINTING CHARTS FROM COPPER PLATES; FINAL CLEANING OF THE PLATEBY HAND; PLATE PRESS ON THE LEFT.
Nautical charts
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