Die doubling v. machine doubling. When did machine doubling first occur?
SanctionII
Posts: 12,597 ✭✭✭✭✭
I post this thread as a result of reading the thread on the 1909 cent that apparently is a DDO.
Looking at the pics of the 1909 cent leads me to think the doubling is "machine doubling" instead of coin produced from a true doubled die.
Doubled dies have been around for ages, probably since the founding of the mint. Machine doubling, probably not.
Production technology at the mint has improved since it was founded (from the screw press to the high speed, high powered presses of today). At some point along the line, I suspect that newer production technology resulted in the phenomena of machine doubling happening. Does anyone know when it did?
Was machine doubling happening in 1909 when the cent shown in the other thread was struck? If so, is it possible that the 1909 cent is merely machine doubled instead of a true DDO?
Looking at the pics of the 1909 cent leads me to think the doubling is "machine doubling" instead of coin produced from a true doubled die.
Doubled dies have been around for ages, probably since the founding of the mint. Machine doubling, probably not.
Production technology at the mint has improved since it was founded (from the screw press to the high speed, high powered presses of today). At some point along the line, I suspect that newer production technology resulted in the phenomena of machine doubling happening. Does anyone know when it did?
Was machine doubling happening in 1909 when the cent shown in the other thread was struck? If so, is it possible that the 1909 cent is merely machine doubled instead of a true DDO?
0
Comments