From September 1981: another STAR WARS mailaway offer from Palitoy... and this time it was a biggie. Literally.
The DARTH VADER COLLECTOR'S CASE (which I did send off for.. although, to this day, I'm convinced that I actually ordered the Dengar figure and this arrived instead) was, by some margin, the biggest (in every sense) of the items included in the "Bounty Hunters" promotion. Just look at the whopping Postage and Packing fee.
Incidentally, Kenner toyed (hohum) with plans for a C3PO version later in the run so tested the required finish by rendering a test run of gold Darth cases. The plan was abandoned.