Closer to the release of The Empire Strikes Back, Kenner began offering a new promotion for a “Secret Star Wars Action Figure” on card backs. The offer ran until July 1, 1980. The figure was revealed, as another bounty hunter, Bossk.
Bossk included a Kenner mini catalog and bio sheet. Depending on when he was mailed out, the baggie version and catalogs can be different.
The mailing label on the box is: 123-009
Versions include:
Mailer Box, SW-A baggie, Character Bio, ESB Logo Catalog (Shown)
Mailer Box, ESB-C baggie, Character Bio, ESB Logo Catalog (Shown Here)
Mailer Box, ESB-C baggie, Character Bio, Yoda & Luke Catalog