Presented below are some high resolution photos of a blue TOS-style Federation Sciences dress worn by the lovely actress Jolene Blalock as T'Pol in the memorable fourth season Star Trek: Enterprise episode "In A Mirror, Darkly, Part II" (first airdate: April 29, 2005). This costume features some interesting design enhancements that were not present in the screen-used 60's era Star Trek female duty uniforms; such as the addition of hidden zipper closures on the arm cuffs, as well as multiple snaps and holes to facilitate prop attachment. Some pictures of this costume as it appeared in the episode are shown after the modern day images. Note that in the final screenshot at the bottom of this post, both a tricorder prop and a Mirror Universe knife are seen attached to the sides of the skirt.
These detailed photos are displayed with the gracious permission of a long time, major American collector and expert on Star Trek Original Series props and costumes; who wishes to remain anonymous ...