DeAtramentis Rudolf Diesel, Dark Blue
Dark blue ink from DeAtramentis, made in Germany.
- This ink is a duplicate of deAtramentis Standard Dark Blue.
Rudolf Diesel, in full Rudolf Christian Karl Diesel, (born March 18, 1858, Paris, France—died September 29, 1913, at sea in the English Channel), German thermal engineer who invented the internal-combustion engine that bears his name. He was also a distinguished connoisseur of the arts, a linguist, and a social theorist.
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