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Notes and Queries - volume 3, 2nd Series - Page 128
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Gozo Philatelic Society Newsletter : no. 32 : April-June 2008
Gozo Philatelic Society Newsletter : no. 63 : January-March 2016
Kings and queens I have known, by Hélène Vacaresco.
Review of Michael W. Cole and Rebecca Zorach (eds), The Idol in the Age of Art -- Objects, Devotions and the Early Modern World
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The Annual Register - volume 17 - Page 197