I know this is probably a stretch, but who knows given the fact that numbers seem to play such a big role in this show....

On the schematics that Sayid had for the Looking Glass, the following sequence was written both in the top corner and on the bottom of the page:

GVS 199288472982

Couldn't find anything significant on Google, but maybe one of you math geniuses can figure it out (if it means anything at all).

Well, GVS may stand for "General Visualization System" which is a term used to describe the wire-mesh frames used in 3-D modeling, including building framework and blueprints. "1992" may be the year it was constructed, meaning it's a more recent hatch than the others. This seems plausible considering the inside of the hatch we glimpsed at the end of the episode. I'm not sure about the rest. Perhaps they're coordinates on a map as to where it's located (latitude and longitude degrees)?

The DHARMA cabling map Sayid found in "Enter 77" has similar numbers:
http://lostpedia.com/wiki/DHARMA_cabling_map
GVS 19928847xxxx (last digits not clearly visible)

The DHARMA cabling map Sayid found in "Enter 77" has similar numbers:
http://lostpedia.com/wiki/DHARMA_cabling_map
GVS 19928847xxxx (last digits not clearly visible)

Good catch. Didn't notice that before. Looking closely, I could almost convince myself that the numbers are the same.

Good catch. Didn't notice that before. Looking closely, I could almost convince myself that the numbers are the same.They are at least the same as far as GVS - 19928847 then I couldn't read the rest.

Does anyone have a better screen cap of the cabling map?