Gina
The script refers to this particular Number Six identity as Gina (akin to Gina Inviere), and not Lida.
Her name is not mentioned on screen to either confirm or dispute this, however.
Original eBay listing #180334676802
This is the listing as eBay showed it during the sale, captured 7 March 2009. Anything learned since is in post-sale context below. Seller-hosted images in the listing were not archived; the lot page has the full photographs.
Research, corrections and screen references added to this archive after the sale. The original catalogue text is above, unchanged.
The script refers to this particular Number Six identity as Gina (akin to Gina Inviere), and not Lida.
Her name is not mentioned on screen to either confirm or dispute this, however.
This is the Number Six who argues with Dealino during the remediation of Galactica's dilapidated inner structure, before a pressure alarm sounds and she ends up saving him, sacrificing herself in the process.