Practical draughtsmen's work, with numerous engravings and diagrams (1903)
Hasluck, Paul N. (Paul Nooncree), 1854-1931, ed · Philadelphia, D. McKay · leaf 26
>ut little room, and are notexpensive. It is advisable to commence with a case that willcontain the following, even if it is not filled up at first:—Half- … Fig. 18.—Serviceable Set of Instruments. set of 6-in. compasses, with lengthening bar; ink and pencilbows; two drawing pens; set of three spring-bows ; pricker andkey. These instruments are sufficient for general work. Fig. 18 illustrates the contents of an ordinary box of service-able instruments.…
Mechanical drawing
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