Embroidery with chestnut peel is a typical craftsmanship of São Mamede’s mountains, especially in Marvão county, where the chestnut is an important element of the local economy.

Artisan Adelaide Martins continues this old tradition producing cadres with plant motifs, many from her own creativity, in which the embroidery is done with moist chestnuts peel sewn on linen cloth, half linen or satin), resulting in embroideries with several colors thanks to the use of the interior and exterior of the chestnut peel.