The Draughtsman's Handbook of Plan and Map Drawing / Including instructions for the preparation of engineering, architectural, and mechanical drawings.

by George G. André

B. Alexander, Lith.

E & F. N. Spon. London & New York.

Page as [large illustration] (240 kB)

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PLATE 33.

B. Alexander, Lith.

E. & F. N. Spon. London & New York.

PORTION of MINING PLAN shewing PILLAR WORKINGS.
as SHEWN by HAND on PAPER.
as SHEWN by ENGRAVING or LITHOGRAPHY.