Han's droid caller on location in Norway during filming.
The Parts of Star Wars exclusive photo
For the second installment of the classic trilogy Han's droid caller was again made from an old Kobold camera flash. Kobold flash attachments have many minor variations and this one was different from the previous model used in A New Hope. This Kobold has a stepped transition on the top section and the bottom has a knurled edge. The middle section of the flash was painted by the prop department. The test bulb cover and lightbulb were removed ((seen to the right of the reflector bracket).
Kobold Flash Attachment
This is the variation used for this prop.