SAMPLE SHINGLES.

We will send free, and charges paid, samples of our WALTER’S PATENT

SHINGLES (three pieces) to any address in the United States on receipt

of five two-cent stamps; this does not pay us one-half the expense, but

we propose to make the cost as light as possible to those interested in

building.

THE NATIONAL SHEET METAL ROOFING CO.,

510 to 520 East 20th Street,

New York City.

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[Illustration: _Design_ F.—_Front Elevation._