Sure. I know exactly what that is...

It's a Selle San Marco Era Lux. It's the version of the Era made for riders 180lbs and over (has slightly thicker padding than the Era). It's just badged with Gary Fisher Logos. If it has Titanium rails it sold for about $110 new, Magnesium rails...about $85 new. That one looks like the MAg rail version, but it's impossible to tell for sure without seeing better pictures. I have both versions on several of my bikes and it is (for my butt anyway) a very comfortable saddle. $20 is a good price for one in "Like New" condition. The saddle is not made by Selle San Marco anymore. It has developed into/been superceded by the Selle San Marco "Ponza" Race Saddle.

Hope that helps.