It's a Genesis Silver A NG from 2002-2003. Silver denotes the trim, in this case, a Black enameled lid. "A" denotes that it's the 2 burner model. Silver A's were made from 2000 - 2005/6. 2000-2001 models had a central cross bar on the bottom frame. From 2002-2004, there was no crossbar, just a full wire shelf like yours. But, 2002-2003's had the straight handle, in 2004 - 2006, a curved handle was used. Also, 2003 was the last year they used those smaller knobs.