Try our new info resource - "Aladdin's Cave" (Main menu)Just added a separate link to Ash's Dropbox thread (shortcut)
As above, get it out into proper sunlight to see if you can spot them, it'll probably be 16 to 32 times brighter than most torches so you've much more chance. Take it away from a bright background as well else your pupils close down in response.Try polarising sunglasses as well to see if it helps.
Ive had a look still nothing did someone say they were done with an engraver I thought they were painted on.