Inside Out Library
Elements of mechanical drawing (1893)
Sullivan, Christine [Gordon]. [from old catalog] · New York, Cincinnati [etc.] American book company · leaf 33
Exercise i. Exercise 2. Fig. 47. 2. A regular hexahedron, or cube, is a solid bounded by six equalsquares (Fig. 48). GEOMETRICAL SOLIDS UNFOLDED, 29Mechanical drawing
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