About the item: "Almost a million gross tons of vessel depending on a hunk a' crystal the size of my fist." Lt. Cmdr. Montgomery 'Scotty' Scott, in ?Mudd?s Women? This VaultCollectibles exclusive prop card features " Dilithium Crystals" from used in the filming of Star Trek. The card is in excellent condition and comes in a screw-down card case for easy display. It will be shipped with the utmost care. Amount/placement of crystals will vary slightly from one pictured but is substantially the same. From the card reverse: First referred to as lithium crystals (in the Original Series episodes ?Where No Man has Gone Before? and ?Mudd's Women?), what would ultimately come to be called dilithium made its first appearance in Season One's ?The Alternative Factor? and went on to become a key part of the Star Trek mythos. Used to both contain and regulate the reaction of matter and antimatter in the Enterprise's warp core, dilithium allowed for a controlled annihilation reaction to safely channel the enormous power required to operate Starships. Key to the plot in such episodes as ?Elaan of Troyius? and ?Mirror, Mirror,? the crystals had recurring appearances in all Star Trek television series that followed, including the Filmation animated series, as well as playing a major role in the plot of Star Trek IV: The Voyage Home. Dilithium is also used as a currency in Cryptic Studios' massively multiplayer online role-playing game Star Trek Online. This prop card is a w w w dot vaultcollectibles d o t c o m exclusive and certifies that this is an authentic "dilithium crystal" fragment used in the filming of an episode of Star Trek. It was acquired from Sci-Fi Cafe? (through Chris Doohan, James Doohan?s son) and was originally obtained in the April-August 2007 It?s A Wrap Star Trek auctions. While the auctioneers were unable to determine with certainty the specific episode in which they were used, the crystals most likely appeared in the Rura Penthe mines scene in the Star Trek: Enterprise episode "Judgement.? Certificate of Authenticity/Provenance: Excepting pack-pulled autograph trading cards, CGC Signature Series, signed Sideshow prints, and like collectibles, all autographed items Vault Collectibles sells were personally witnessed, by myself, being signed by the writer, artist, or celebrity in question. No third party is involved. Further, art sketches - and most published original art I sell - were obtained directly from the artist themselves. For buyers desiring this guarantee in written form, this statement guarantees that the above referenced item is as stated in the listing description. A screen capture of the completed auction page, which includes this statement of provenance, may be saved by the buyer as a digital file or print off in hardcopy form. As this serves as written proof of said guarantee, no physical documentation will be included in the package when the item is mailed. J. Brian O?Bryant VaultCollectibles dba as empire.auctions