iron dyed portrait cardholdera minimal portrait cardholder, hand cut and from a soft 1. 4mm vegetable tanned horse culatta leather and cold soaked creating an unbalanced silhouette. culatta is a special cut combined of the rear just above the cordovan, the belly middles and the hind shanks, offering a dense structure, tight grain and firm temper. the leather has been finished with an iron solution created from sea water and shipwrecked metal to generate a range of tonal nuances.