20 Jan 2007

Original version (published on UKDFD website).

18 Oct 2017

Added to this website, reformatted, some revised text and new images.

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25 Sep 2021

Link buttons modified to website standard.

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10 Sep 2024

Magazine title 'Coins & Medals' referenced in bibliography section corrected to 'Coins', the latter title having incorporated the former in 1970.