The 439 furs of young foxes were studied after killing in three consecutive years. The estimate of exterior and cover of foxes were made by different arbiters in every year. The furs were classificated and estimated by the same sortier, on the farm in the every year. The supravital estimate took over total score, body size and conformation, colour type of cover, colour clarity, density of cover and lenght of hair. The estimate of furs took over class, size, defects of colour type, defects of colour clarity, coat category and defects of felt. The results supravital estimation give not good criterium for estimate quality of fur. The correction licence estimate on year and sex of animals increased accordance licence criterium with results fur estimate. The autors shoved different accordance licence estimate with furs estimate in each year.