Originally Posted by Mickey2

From 1950 all 201 (and other models) seem to have the striated chromed plates. There are a few examples of striated from 1949, but that's the the last days of the art nouveau plates. Some times it's obvious a machine is hotchpotch of parts taken from other machines. They still sew and look nice though. There are some differences to the 201s, the plate under the spool pin might or might not be there. The hand wheel can be all black or have the chormed outer rim, I think there are a few others just among the 201-2s. The early decal sets tend to be shiny gold metal, the later ones can be more like yellow paint.