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NATIONAL VAULT LIGHT CO.
Concrete Sidewalk and Floor Lights and Natural Daylight Roofing
OFFICE AND WORKS
537 Jackson Avenue
(BRONX) NEW YORK, N. Y.

Products
    CONCRETE SIDEWALK LIGHTS.
    CONCRETE FLOOR LIGHTS.
    NATURAL DAYLIGHT ROOFING.
    VAULT LIGHT DOORS.
    Ready to set slabs, using any type of glass made in factory, and shipped where required.
    These products are waterproof, rustproof, fireproof and burglarproof, there being no metal exposed.

No. 14 and No. 50 Sidewalk Light Construction
    Our concrete glass construction is a standard manufacture. No. 14 consists of a 3-in. round glass and No. 50 of a 3½-in. square annealed glass both 7/8-in. thick. Both types are designed for heavy duty, being set in a specially constructed shield which is galvanized by a hot dipping process. Glasses are set with tar and sulphur composition to prevent them from cracking during expansion and contraction. Reinforced with twisted steel bars laid longitudinally and transversely. Replacements can be made without employment of a skilled mechanic. Expansion joints are formed where necessary and properly calked. Approximate weight 22 lbs. per sq. ft.
No. 75 Natural Daylight Roofing
    Standard manufacture, consisting of wire glass 8¼ in. square and ½ in. thick, is set in a specially constructed shield galvanized by a hot dipping process. Glasses are set with tar and sulphur composition to prevent them cracking during expansion and contraction. Reinforced with twisted steel bars laid longitudinally and transversely. Replacements can be made without employment of a skilled mechanic. Expansion joints are formed where necessary and properly calked.
    Approximate weight is 25 lbs. per sq. ft.

Guarantee
    All work is covered by a written guarantee to remain free from any defects of material or workmanship for a period of 1 year, and glass for replacements are furnished free of charge for period of 5 years f.o.b. our warehouse.

Installations
    Installations have been made with our products on various projects such as loft buildings, comfort stations, hospitals, subways, restaurants and apartment buildings.
No. 50 Sidewalk Light
No. 50 Sidewalk Light
No. 14 Sidewalk Light
No. 14 Sidewalk Light
No. 75 Natural Daylight Roofing
No. 75 Natural Daylight Roofing