I'm sorry, I wish I could help but, welcome aboard
and you might want to wander over to the New Inmate Processing Area and introduce yourself.
http://www.cigarasylum.com/vb/forumdisplay.php?f=7
I would imagine that S.T. Dupont lighter dating is a pretty esoteric pursuit, tough to do with just photos, but I see what looks like a serial number in photo 2, so perhaps contacting them with that might help.
http://www.st-dupont-nyc.com/
You might want to check this out, as well:
http://www.cigarasylum.com/vb/showth...821#post239821