Mechanical drawing : a manual for teachers and students (1902)
Cross, Anson Kent · Boston : Ginn & Co. · leaf 106
173. … 172. Drawing B represents a cube and aHne I which is in the same plane as the rightand left vertical edges of the cube, and there-fore intersects these edges. Line 2 is in frontof the right and left vertical edges ; its intersec-tions with the faces of the cube are seen in thetop view, and may be…
Mechanical drawing
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![An illustration from Cours d'architecture enseigné dans l'Academie royale d'architecture : premiere[-cinquième] partie ... (1675)](https://img.insideoutlibrary.com/img/200/ia-coursdarchitectu00blon-426-326.webp)
