COW turns out at a size of 20 cm with the yarn I used (sockyarn). If you are using yarn with a different gauge the doll measurements will change. In that case you have to correct the eyes-size.
This pattern is written in US terms.
White/naturel for the head, body, arms and legs, Regia Tweed 4-ply color: 02 (+/- 60 gr) Black for the spots, Regia Uni 4-ply color: 2066 Brown for the hooves and horns, Schoeller en Stahl Fortissima color: 2071 Pink for the snout and ears, Regia Uni 4-ply color: 1976 Yellow for the label, A rest of yellow yarn