An example of the pedhalangan terms "nganaki" or "mutrani" (descended from). The Arjuna on the left is from Ki Purbo Asmoro's antique 100-year old+ collection from Klathen, while the Arjuna on the right has been modelled after it (mutrani) and is part of the "state of the art" current collection he uses for most performances. For more examples and comparisons see:

Banowati
Kumbakarna
Kresna
other wayang from PA's collection