This variety is properly called 'La Superba' - the translator of the Coggiatti article you quote made a mistake. Page 50 of the last Annuario della Rosa (2014) lists "La Superba", HT, Mansuino, Medaglia d'Oro cat. HT, 1970, Monza", giving the description as "Double flowers, light fuchsia pink with evident golden stamens, cupped, double, in clusters, with a slight fragrance. Late flowering."