[Coggeshall, William Turner], 1824-1867, [from old catalog] ed · Columbus, Follett, Foster and company · leaf 262
ully in-spected, to see that no flaws or bubbles appear on the surface.Should any be found, the sheet is immediately divided bycutting through them. It is afterward removed to the an-nealing oven, where it is placed in a horizontal position, andremains for about fifteen days. When glass is in a…
Printing · Pottery · Gas, Illuminating · Iron industry and trade · Glass manufacture
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