Practical engineering drawing and third angle projection, for students in scientific, technical and manual training schools and for ... draughtsmen .. (1897)
Willson, Frederick Newton, 1855-1939 · Princeton, N.J., The author · leaf 175
ALLEN-RICHARDSON SLIDE VALVE. Draw either full size or larger. Section lines in Prussian blue, one-twentieth of an inch aj^art.Dimension lines, red. Dimensions and arrow heads, black. Lettering and numerals either inExtended Gothic or Reinhardt Gothic. … No. 1. ABCDEFCHIJK LMNDPPRETUVWXYZBcabcdEfghijklmnDpqrEtuvwxyz 1234557890 -A. B G ID E! in G- No. 2.Z Sc 1234567890,. No. 3. ABCDEFGHIJKLMNOPQRSTUVWXYZ& 1234567890 No. 4.AB CDEFGHIJKLMNOPQRSTUVWXYZ&,. No. 5. ABGDEFGH lJKLlvlNOPQl?§TUywXYZ5( 12S4567590 No. 6. ABCDEFGH IJ KLM NOPQRSTUVWXYZ&…
Mechanical drawing · Lettering
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