Excavations along the I-95 corridor in Philadelphia revealed the square foundations of annealing ovens used in the Dyottville Glass Works during the early nineteenth century.(Courtesy AECOM, Digging I ...

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Before sunrise, Eric Dandurand arrives at his shop and unloads the previous day’s work from the annealing oven — used to slowly cool glass items — before firing up the studio. While waiting for the ...

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