1852 - 6b greyish green and 6b grey-lilac, mint wi
1852
1852 - 6b greyish green and 6b grey-lilac, mint with gum, well-margined. Calvez handstamp for no. 7 and Brunn handstamp for no. 7a, Bottacchi certificates for both examples (Sassone 7+7A)
sat 14 November 2026
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