You already know how good this amp this, so I won't waste your time trying to describe it!  Tube chart dates this as Feb '67 but as you might expect all the parts date from later '66. A stunning example of an amp that deserves wider appreciation, caps have been replaced where necessary and one pre-amp valve socket. Other than that all original, the transformers, choke, speakers, even the footswitch. Rare export model runs at UK voltages.