black reverse culatta leather portrait wedge cardholderthe portrait wedge cardholder has been hand cut from a butter soft full grain washed and tumbled 2. 3mm vegetable tanned rotten corpse matte black reverse horse culatta leather. 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 medium to firm temper. vegetable tanning is a traditional method of treating the hide using natural extracts such as tree