Excerpt from Practical Geometry and Engineering Drawing
Two drawing pens, one for fine and the other for thick lines. Great care is required in their use and treatment. They should be held steadily and at a constant angle to the paper. The ink must be introduced between the nibs by means of a small brush or the feather of a quill pen, and as soon as it begins to thicken the points should be wiped clean with blotting-paper previous to refilling. After use drawing pens should be carefully wiped with wash-leather.
Two pairs of compasses, one smaller for use as dividers only, in transferring lengths from scales, setting off distances, &c.; the other larger, with a movable limb which can be replaced at pleasure by an ink or pencil leg. These latter compasses should have needle points. In using dividers care must be taken not to make holes in the paper, a very slight indent being all that is necessary to mark a point.
Two small compasses, one having a fixed pencil and the other a fixed pen leg. These are required for drawing small pencil and ink circles. Both should have needle points and jointed limbs. In drawing circles the jointed limbs of the compasses should be bent so as to stand at right angles to the paper.
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