From my Personal Collection is Today’s “Featured” Prop is a Klingon Headpiece from what I believe is Star Trek VI: The
Undiscovered Country based on wear and style of Klingon ridges. The Headpiece is made of foam latex rubber and has some wear from use. I keep all Foam latex items protected from the elements , usually stored for display in a case of some type, even shadow boxes work. The Klingon Headpiece was originally sold by Profiles in History Hollywood Auction 27 April 5, 2007 Lot #611. The Headpiece is from the lot described as “Collection of head & facial make-up appliances from various Star Trek films and series”.
Profiles in History Listing description:
Collection of head & facial make-up appliances from various Star Trek films and series (Paramount, 1984-2001) Collection of ten head & facial make-up appliances from various Star Trek films and series. Includes two Klingon headpieces; space mummy face & hair appliances from Voyager; Rene Auberjonois “Odo” face from DS9; raw unfinished Ferengi head from DS9; complete Ferengi head from DS9; Kazon appliance from Voyager; full alien ambassador head from Star Trek IV: The Voyage Home; Borg head with exposed working brain from Voyager; and a 5th dimension alien mask from TNG. A wonderful collection representing some of the most memorable alien species from Star Trek.
Here is a screenshot from Star Trek VI showing the headpiece on screen.