Original Series 2nd Season Starfleet Sciences Dress from Wolf in the Fold (NBC-TV, 1966-69 Original airdate December 22, 1967).

This dress was worn by actress Virginia Aldridge who appeared as Lieutenant Karen Tracy in the 2nd season episode Wolf in the Fold and became an unfortunate victim of a malicious incorporeal entity that was living on the planet Argelius II when the Enterprise visited for shore leave. For a while, Scotty appeared to be responsible for the murders of several women that were killed by the entity, which feeds on fear, and was revealed to have previously taken the form of Jack the Ripper on 19th century Earth to commit a series of famous unsolved murders in England. The dress contains numerous slashes on the back and still shows faint evidence of the studio applied faux bloodstains.