During the war, the Japanese produced high-quality forgeries of the Indian currency.

These were produced between 1917 and 1923 and are sometimes called "Fournier" forgeries.

He now dedicated himself to portraiture and began producing forgeries to increase his income.

Still a contentious issue, it has not been established whether he produced forgeries.

According to Fichtenau (1970), Zappert is suspected of having produced other forgeries, too.

He converted the top floor of the farmhouse into a workshop where he produced forgeries of coins and banknotes.

In the 1930s, Chinese painter Zhang Daqian produced several forgeries of Bada Shanren's works.

He produced forgeries of the stamps of Ecuador and Romagna in the 1890s.

Regarding France, Britain produced forgeries of the Iris series and of stamp depicting Marshal Philippe Pétain.

Ever more sophisticated techniques are being used to produce both genuine documents and forgeries.