a short distance from Pittsburgh, is one of the largest in 
the world, employing several thousand persons. The 
company also operates factories at Elwood, Ind., Toledo, 
Ohio, Bethevan, Ind., as well as a factory in Pittsburgh. 
It was at the Charleroi plant that many of the extra- 
ordinary things which have been done in glass, in recent 
years, were accomplished. Perhaps the most important 
of these things was the manufacture, for the first time in 
America, of the great lighthouse lenses used by the United 
States and other Governments in the lighthouses which 
protect the coasts and waterways. Some idea of the 
development of the glass industry can be formed from 
the fact that in this plant there are made seven different 
kinds of clear glass. Glass is made which can be subjected 
to very violent treatment, such as throwing it around 
without breaking. This glass is used in the steam gauges 
of large locomotives and in other places where a glass is 
required of sufficient toughness to resist great expansive 
forces. Special heat-resisting glass, used where it is sub.- 
ject to high temperatures, as in miners’ safety lamps, is 
also made here. Other products include all kinds of illumi- 
nating and industrial glassware, lantern globes, street light- 
ing globes, lighting fixture glassware, ship lights, railway 
signal glass, chemical glassware and automobile lenses. 
It is, however, impossible to enumerate the multitude of 
different articles manufactured by this company, as the 
latest estimate placed the number at over 6.000. 
PITTSBURGH LAMP, BRASS & GLASS COMPANY 
The Pittsburgh Lamp, Brass & Glass Company was 
incorporated in 1902 under the laws of New Jersey with 
an authorized capital of $1,500,000, equally divided be- 
tween preferred and common of the par value of $100 a 
share. The company was formed by the consolidation of 
the Pittsburgh Lamp and Brass Company of Allegheny, 
Pa., the Kopp Glass and Lamp Co. of Swissvale, Pa., the