It's the very first Recto, which is collectable on it's own. Like Tiago said, 260 or so total. But, tonewise, they are fn amazing. Straight up kicks the shit out of any other version recto, 5150, and as cool as the SLO is the C I had ate it up for what I like anyway. It thumps at volume like a Triple or damn close to a Wizard, clarity as good as anything...straight in it sounds like an already boosted F but way tighter...boosted the C becomes insanely good. Hermansson Rectos? Nah...not similar in the least. At least from the clips I've heard, and while they are cool they seem to have a hole in the mids vs a stock Recto. The C, you can dime the mids AND the bass and it's just better mids and better bass...you can't dial in a bad tone with the EQ. It loved every speaker I have, and the feel is different but equally addictive like a C+. Rectos aren't known to be amps with great lead tone BUT the C delivers, I actually liked it best among all Mesas including the 4 C+ I had....SRG, HRG, HRG++, and a Coli.
It's a killer amp and compared to a G, like a totally different circuit altogether. Like unrelated in any way if you compare the tone.
Worth that coin? Well, if you are willing to cough up 8K for a C+, then I wouldn't hesitate to cough up that much for a C Recto.
Just my 2 cents....
BTW I C modded an F Triple, and while it was a nice improvement to the red modern it still doesn't do what a real C does.
Edit: I should also add that the C I had, was with Mike B within the last 2 years...so it was in perfect condition regarding the circuit.