 Complete the following phrase:  While there were many horse whittlers in the early production of Dala horses, there were comparatively few horse painters. The large number of whittlers and a lack of distinguishing features makes it difficult to distinguish between different whittlers. Early painters very rarely signed their work, but they did have their own distinct pattern from which it is often possible to identify who painted a particular horse. In the 1930s especially after the Worlds Expo in Paris 1937 and 