THose do look like real Dynaco /Dynakit MK IIIs, right down to the phenolic PC boards with the Black Cat coupling caps. Pretty good condition, considering their age.
The preamp built into the old computer case is rather interesting, I presume that it sounds a lot better than it looks ;-). THis also illustrates verynicely the technique of adding an extra winding to a toroidal transformer.
Now it's time for a little celebration...
It is a Belarussian vodka,
"Hlebnoe vino" "Minsk Krishtaal"
/ed B