Here is a very nice cow, hand painted sometime between 1940 and 1968. OUD Delft was founded in 1920 in Nijmegen Holland.
The is about 4 inches tall. It is about 3 inches wide and 6 inches long. I put a soda can next to it to show size.
The one horn has been repaired and there is some crazing which is not unusual. I also have another OUD delft cow with a milkmaid.