Price list of drawing materials, architects and engineers, supplies, blue process papers, etc (1886)
Soltmann, E. G., New York. [from old catalog] · New York, Holt brothers · leaf 149
11,500. Slate Ink Stone, 5 inch, with heavy glass cover each, . 75 11,504. Slate Ink Stone, 3>^ .50 With these stones the ink can be quickly and uniformly ground. The slatesurface is smooth, but not polished. The deep well in the centre gathersthe ink and makes it more convenient for filling the… … 11,510. Round White Glass Ink Slab, with cover each, .50
Drawing instruments
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