Ernst Johann von Biron, Duke of Courland and Semigallia 35 s — Lettonie, 2012
Ernst Johann von Biron, Duke of Courland and Semigallia (Lettonie, 2012), valeur faciale 35 s, série « 450th Anniversary of Duchy of Courland and Semigallia…
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450th Anniversary of Duchy of Courland and Semigallia