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web.archive.org
"What is Numismatics?". corporatefinanceinstitute.com. Corporate Finance Institute. Archived from the original on 17 January 2022. Retrieved 15 May 2022.
Michel Amandry (2004). "Michael Grant (1914-2004)". Inc-cin.org. INC Compte Rendu 51. pp. 13–19. Archived from the original on 3 August 2019. Retrieved 11 July 2019.
"INC cin". Inc-cin.org. Archived from the original on 29 July 2017. Retrieved 29 July 2017.
N. Keith Rutter (2013). "Barclay Vincent Head (1844-1914)". Inc-cin.org. INC Compte Rendu 60. pp. 25–37. Archived from the original on 3 August 2019. Retrieved 11 July 2019.
Andrew Burnett (1999). "George Hill (1867-1948)". Inc-cin.org. INC Compte Rendu 46. pp. 64–68. Archived from the original on 3 August 2019. Retrieved 11 July 2019.
"CONTACT US". www.ashmolean.org. Archived from the original on 29 November 2021. Retrieved 23 January 2021.