I don't know much about gassers. Is this a Genesis?
(http://i1370.photobucket.com/albums/ag248/sullymacy/gasser_zpsm0clxjte.jpeg) (http://s1370.photobucket.com/user/sullymacy/media/gasser_zpsm0clxjte.jpeg.html)
I also don't know how to rotate pictures.
If you open the bottom cabinet, there should be a sticker on the inside (probably on the tank side) that will give you all the specs.... model name, model number, weight, btu's etc...
I can't get to my Photobucket account from this computer but I rotated and zoomed in on that picture and it says Genesys by the knobs.
Here you are got it
(http://i782.photobucket.com/albums/yy107/ray43050/Capture.jpg)
Yep. Looks like an E-310 from between 2007 - 2010. If you are looking at buying it, check the lower frame/cabinet very carefully for rust, to the point of carefully laying the grill down on it's back and looking at the underside of the cabinet. Just a tip, but lift the lid and pull the guts out first :P
Thanks, fellers!