The Xenomorph in that photo has two eyes, and is now the property of Bill Malone. It's visible in the closing Hitchcock segment of the hour-long "Sign of Satan" episode with Christopher Lee. It's the one in the movie whose eye looks like that of a chicken.
I once contacted the guy who took the photos for Colliers, and he offered to sell me the hundreds he shot that the magazine didn't use. He never responded to another phone message.