PITTSBURGH PLATE GLASS COMPANY

## Polychromed Mirrors

### 12 x 24 Mirror

No. 844. Polychromed

Frame, 1-inch side and bottom rails,
3-inch top. Fitted with plain polished
plate glass mirror.

Mirror, 12x24

For sectional view of moulding see
page 47

### 12 x 24 Mirror

No. 845. Polychromed

Frame, 1½-inch side and bottom rails,
3-inch top. Fitted with plain polished
plate glass mirror.

Mirror, 12x24

For sectional view of moulding see
page 48

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## Polychromed Mirrors

### 12 x 24 Mirror

Polychromed

No. 846M. Mitred Mirror

No. 846. Plain Mirror

Frame, 1½-inch side rails and bottom
rails, 2½-inch top. Fitted with mitred
polished plate glass mirror or plain
mirror.

Mirror, 12x24

### 14 x 26 Mirror

No. 847. Polychromed

Frame, 2½-inch. Marble finish with
gold burnished cross bands. Fitted
with plain polished plate glass mirror.

Mirror, 14x26

27

## Polychromed Mirrors

### 14 x 28 Mirror

No. 848. Polychromed

Frame, 1½-inch side and bottom rails, 4-inch top. Fitted with plain polished plate glass mirror.

Mirror, 14x28

### 14 x 28 Mirror

No. 849. Polychromed

Frame, 1½-inch side rails, 3½-inch bottom and 4½-inch top. Fitted with plain polished plate glass mirror.

Mirror, 14x28

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## Polychromed Mirrors

### 12 x 24 Mirror

No. 833. Polychromed

A simple and neatly designed frame, 1-inch rail, 3-inch top, made of beautiful concaved moulding. Hand-mounted crown top, bow-knot ornament. Finished in genuine powdered gold, hand burnished and toned in solid colors of Green. Fitted with polished plate glass mirror.

Mirror, 12x24

For sectional view of moulding see page 46

### 14 x 28 Mirror

No. 836. Polychromed

Italian Roman design, 1½-inch rail, 4-inch top, polychromed in colors, Blue, Red and Gold. A beautiful and effective mirror frame. Something entirely new and up-to-date. Finished in powdered gold, burnished and toned in colors. Fitted with plain polished plate glass mirror.

Mirror, 14x28

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Polychromed Mirrors

14 x 28 Mirror

No. 850. Polychromed

Frame, 2-inch side rail, 4 1/2-inch top.
Fitted with plain polished plate glass
mirror.

Mirror, 14x28

16 x 28 Mirror

No. 851. Polychromed

Frame, 2-inch side rails, open spindle
shape, 7-inch top and bottom. Fitted
with plain polished plate glass mirror.

Mirror, 16x28

For sectional view of moulding see
page 49

30

Polychromed Mirrors

16 x 30 Mirror

No. 852. Polychromed

Frame, 1 1/2-inch side rails, 2-inch bot-
tom and 3-inch top. Fitted with
plain polished plate glass mirror.

Mirror, 16x30

18 x 36 Mirror

No. 853. Polychromed

Frame, 2-inch side rails, 2 1/2-inch bot-
tom, 9-inch top. Fitted with plain
polished plate glass mirror.

Mirror, 18x36

31

Silk Cords

For Mirrors and Pictures

Made of heavy wire, covered with fine silk, 54 inches long. The rosette at the top conceals a heavy brass picture hook to use on room moulding. Made in four beautiful shades: Delft Blue, Old Gold, Maroon and Polychrome.

All above made in following shades: Delft Blue, Old Gold, Maroon and Polychrome.

Heavy Metal Top Hangers

Mirror Cords

The ornamental part is made of metal and has a strong picture hook securely fastened on back of ornament. Ornaments are finished in gold antique and polychromed, bringing out the flower effects like natural flowers. The finishes harmonize with the frames.

The finish on ornamental part is guaranteed not to tarnish.

Cords and tassels are silk, come in as-
sorted colors—Blue, Gold and Rose.
Each cord has a tassel that slides up
and down and each cord is 50 inches in
length. No. E is a floral torch design.
No. F is a Narcissus flower design.

44

LATEST IN DECORATIVE
FRAMED MIRRORS

All new patterns of attractive design. Among the new popular and quick-selling frames are those with the polychrome finish. This effect is produced after the manner indicated by the name—with the use of many colors, such as blue, pink and green artistically blended on a background of a dark stippled color. All high-lights finished in gold. Dealers will have a ready sale for the polychrome frames fitted with either the plain mirrors or the new mitred mirrors.

A distinctive departure is offered in the mitred mirrors, those with the deep "V" shape cutting, forming a simple and effective design on the face of the mirror. See pages 22, 25, 27, 32, 33, 35, 39, 40, 42, 44.

Showing Sectional View of Moulding on following pages

Frames illustrated pages 22 to 43

All 3/4 Full Size

Pattern No. 817

Pattern No. 821

45

PAINT

For the Furniture
Repair Shop—

W HETHER you wish to "touch up" a picture frame, or refinish an entire suite of furniture, you can secure the necessary materials from the Pittsburgh Plate Glass Co.

The line of Pittsburgh Proof Products is made up of a complete, well assorted stock of Paints, Varnishes, Wood Stain and Enamels for every purpose and finish, to be sold or used in Furniture Stores or Departments.

These materials are reliable; they have been tested by time and service in furniture repair shops, as well as by Furniture Manufacturers.

Our nearest warehouse will forward any of these supplies with Glass or Framed Mirror shipments.

PITTSBURGH PLATE GLASS CO.

PAINT • Manufacturers • GLASS

For list of warehouses see second page of cover

Aluminum
Bronzing Liquid
Bronze Powders
Brushes
Sponges

Chamois Skins
Colored Varnishes
Enamels
Furniture Polish
Steel Wool

Glass Boards
Glass Cutters
Glue
Metal Polish
Varnishes

Paints
Pumice Stone
Sandpaper
Shellac
Varnish Remover

Wood Stains

VARNISH

Copyright 1923 Pittsburgh Plate Glass Company

58

THE
MAKING
OF
PLATE GLASS

We use only Polished Plate Glass in all our Fitted Framed Mirrors.

That some little idea may be gained of what it costs and the extreme care that must be used to produce Polished Plate Glass and Mirrors, we give below a few brief sketches of how Plate Glass is made.

Casting the Plate

This is a large table of iron, a heavy iron roller which covers the full width. The molten glass metal is poured upon the table from the melting pot, and the roller quickly passes over it, leaving a layer of uniform thickness of about ½ inch. The red-hot plate is shoved into an annealing oven.

The plates remain for several days in the annealing oven, where the temperature is gradually reduced.

GRINDING AND POLISHING

The grinding table is a large flat revolving platform made of iron (twenty-five feet or more in diameter. The grinding table is prepared by being flooded with plaster of Paris and water; then the glass is carefully lowered into place until it is set. The grinding is done by revolving runners. Sharp sand is fed upon the table, and the stream of water constantly flows over it. After the first cutting by the sand, emery is used in a similar manner.

Grinding the Plate

Afterward comes the polishing, which is done on another special table. The polishing material is rouge, or iron peroxide, applied with water, and the rubbing is done by blocks of felt. Reciprocating machinery is so arranged that every part of the plate is brought underneath the rubbing surface.

The grinding and polishing has taken away from the original plate half of its thickness, sometimes more. There is no saving of the material; it has all been washed away.

In preparing plate glass for mirrors great care must be exercised in the selection of the plates. This selection bears reference not only to surface defects, but to the quality in general; defects which cannot ordinarily be seen are magnified many fold after the glass has received a covering of silver.

BEVELING

In the process of beveling the plate passes through the hands of skilled workmen of five different divisions, namely: Roughers, emeryers, smoothers, white-wheelers and buffers; and different abrasive materials are used in the order indicated by the titles. These materials are sand, emery, natural sandstone imported from England, pumice and rouge.

SILVERING

The plate, after leaving the beveling room, is again carefully examined for surface defects. These defects may consist of scratches caused inadvertently by permitting the surface of the plate to come into contact with the abrasive material. These scratches are removed by hand polishing, which must be skilfully done; otherwise the reflection will become distorted through over-polishing in a given area or spot. The plate is then taken to a wash table where

Silvering Mirror Plates

the surface to be silvered is thoroughly washed with distilled water; after which it is taken to a table that is covered with blankets, and which is heated to a temperature of from 90 to 110 degrees. The blanketing is to protect the plate from being scratched, and also to catch all of the silver waste. The silvering solution is nitrate of silver liquefied by a certain formula; and is poured over the plate; the fluid having an appearance which to the ordinary observer looks like nothing other than pure distilled water. Within a few minutes the silver, aided by a reactor, added prior to pouring, begins to precipitate upon the glass; the liquids remaining above, and thus preventing air and impurities from coming into contact with the silver. Such contact would produce oxidation. After the silver is precipitated the plate is thoroughly dried, shellacked and painted; after which it is ready for commercial use.

59