2001 Aircraft Atomic 20. Made in USA, serial number #6. This amp is all original except for a rewired external output jack. Very rare pre-production run, handsigned and dedicated to the first owner Zlatko 'Slädu' Perica, who purchased the amp directly from the two owners of the company in 2001, one of them being EHV's guitar tech. It's an incredibly good sounding tube amp, the projection is phenomenal and it might be the loudest 20 watts we've ever heard.