Thanks SMiles for a nice post and thanks to all, SMiles I'm curious what year was he laid off? The moving of production to the SE is news to me, I don't doubt it, and I'm interested in that tidbit as well. SMiles it may be Rickybob has this figured out and showed us all a thing or two in the process, and much appreciated. "... this is a stove that once had a ex type burner and it has been rebuilt with a xgk II burner..." . Seems doubtful it's a 2006 prototype. Re date: The quality of the stamping of MSR dates is flawed at times ...and maybe just a problem with the "0" when stamping that block? I'll offer a couple images from an MSR stove, made/stamped in 0306. Sorry I'm not sure of the exact model of X-GK. and it's familiar date stamp thx omc PS Early-on in this post, credit Brenneman for quickly sharing that it's a valid date format with his: MSR 1214 (Dec 2014). As an FYI, examples of prev decades: MSR 0101 (Jan 2001) and MSR125 which I think was Dec1995.