object dyed black reverse culatta leather zip cardholderthe card case has been hand cut from a butter soft full grain washed and tumbled 2. 6mm vegetable tanned natural reverse horse culatta leather with a rotten corpse matte black object dyed finish offering an array of tonal nuances. 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