An engraving depicting a diver attached to a drilling scow putting the charges in drill holes. Cartridges of nitro-glycerine were 10 ft long and 4-5 inches in diameter. This method of demolition was used during the removal of the Hell Gate Rocks on the East River. Dated 19th century

RMID:2A267X0

Image details

Contributor:

Image ID:

2A267X0

File size:

60 MB (2.8 MB Compressed download)

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Dimensions:

4062 x 5163 px | 34.4 x 43.7 cm | 13.5 x 17.2 inches | 300dpi

Date taken:

1872

Photographer:

More information:

This image could have imperfections as it’s either historical or reportage.