BIBLIOGRAPHY
Wikipedia 'German mark (1871)' and Italian version 'Lira italiana'
Wikipedia (according to the sources of each article)

Claims Supported by This Source
- A law of December 4, 1871, named one-tenth of a new gold coin the 'Mark'
- The Coinage Act of July 9, 1873, made the Mark the unit of account
- Italy unified to the Lira by royal decrees in 1861 and 1862; currencies of the former states ceased to circulate on January 1, 1863 (Italian version 'Lira italiana')
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