A good drawing ink should be smooth flowing and quick drying as well as permanent and waterproof. The stopper is usually equipped with a quill to be used in Tilling drawing and ruling pens.

2.

3.

PASTED COLORED PAPERS

The problem of putting color on a graphic chart is further simplified by the use of colored paper.

1. Plain colored paper may be pasted on with rubber cement. Colored paper with a gummed back may be obtained either in tape form or in sheets.

Colored paper with a back which adheres to any clean, smooth surface and which requires no water may be obtained in a variety of widths and colors.

Sources:

Dennison Manufacturing Co., Framingham, Mass., New York

City (and various other cities). Industrial Tape Corporation, New Brunswick, N. J. Minnesota Mining &' Manufacturing Co., Chicago, New York

City (and various other cities). Poster Products, Inc., Chicago, New York City, Van Chef Bros., Chicago, New York City.

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..I.

Ii.

GRAPHIC PRESENTATION

ERASERS

Erasers are necessary implements in the drafting room. They may be classified into the following types:

1. velvet -- for erasing pencil

2. sandpaper -- for erasing typewriter type

3. scrubbing -- for erasing smudges, charcoal, pencil, etc.

4. roll-off -- for cleaning up drawings

5. kneading erasers -- for cleaning pencil, etc., from walls

6. ink erasers and ink eradicators

7. erasing machines

Sources :

Joseph Dixon Crucible Co., Jersey City, N. J. Eagle Pencil Company, Inc., New York City

Eberhard Faber Pencil Co., Brooklyn, N. Y.