Original mask and head piece used by the Zaranite alien race
The Zaranite breathing apparatus from The Motion Picture was reused for a pair of Federation councilors
At Kirk's trial in Star Trek IV: The Voyage Home
And as Camp Khitomer attendants in Star Trek VI : The Undiscovered Country
"Star Trek : The Motion Picture" (1979)
"Star Trek IV - The Voyage Home" (1986)
"Star Trek VI : The Undiscovered Country" (1991)
