Text from 1945 Advertisement:

Famous Ford "Firsts"
THE UNIQUE PROCESS THAT GAVE THE WORLD
FINE PLATE GLASS AT REASONABLE COST

    In 1923, a red hot ribbon of plate glass began to flow from a giant furnace in the Ford Rouge plant. Year after year, this molten ribbon poured out ... rolled into a 400 foot cooling oven ... moved onto the polishing line to be finished and cut into crystal-clear sheets.
    This was the first continuous process of glass making ... capable of producing more than tree miles of plate glass every day.
    Started in a limited way in 1920, this process was conceived by Henry Ford to make possible the use of finest quality plate glass in low priced cars. It did even more. It hastened another great Ford "first" ... safety glass as standard equipment "all around."
    Following his usual policy, Mr. Ford made the continuous process available to all Industry without royalties. Thus, throughout the world, people came to enjoy the beauty and utility of plate glass, not only in their automobiles but in their homes as well.
    The constant Ford search for new economies, new improvements, has produced many such "firsts." It will go on producing many more of them - to the lasting benefit of every owner of Ford-built cars and trucks.

1st with a continuous process of glass making