The cast-iron coffins were “fashioned after an Egyptian sarcophagus

Two cast-iron coffins containing 150-year old mummies were excavated in New Jersey, during archaeological explorations in advance of construction of a new building. While historical research had documented the past presence of a burial ground at the site, it was thought most of the burials had been relocated. Although the archaeologists were prepared for the identification of additional burials at the site, the recovery of cast-iron burial cases, which were rarely used and only for a brief time in the mids-19th century, surprised them.
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Newark’s Mummies Raise Many Grave Questions
By Shelby Vittek
New Jersey Monthly
May 5, 2017