
Making money in 18th-century America
Analysis of paper money produced by Benjamin Franklin is shedding new light on the monetary history of Colonial-era America.

Analysis of paper money produced by Benjamin Franklin is shedding new light on the monetary history of Colonial-era America.

This 19th-century letterpress printing plate was found by a metal-detectorist, on cultivated land in Warwickshire, last summer. It is made from copper alloy, and – measuring 6.24cm by 4cm by 0.48cm – it weighs just over 100g. Rectangular plates like…