Losnr. 1957 - 205.-209. Auktion
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Losnr. : 1957 Russland
1906: Essay for a letter card with prepaid response, 10 + 10 kop. blue of buff card, prepared for its presentation to the delegates at the UPU congress in Rome. However, international reply coupons were chosen instead and these cards were never issued. Rare Standard catalogue ES6 = $ 2'000.Ausruf : 1.000 CHFZuschlag : 1.100 CHF