Pro Co has also introduced tonal variations of the RAT, including the Turbo RAT and You Dirty RAT, among others.
It is possible that others may exist, probably closer to 118k than 200k.
Some early DOD FX-series pedals have stickers with the date of final assembly, but unlike Boss pedals, the month and year of manufacture is not encoded in its serial number.
However, like vintage guitars and amps, the date of manufacture of almost any effects pedal can be estimated by examining the date codes of its components.
P Recordings: a quick check at Amazon shows a number of CD's, several of which look pretty darn enticing! Amp: Well, by deduction/process of elimination - gotta be a small-box Tweed Fender or Gibson amp.
Either way, sounds like 6V6 tubes (the heart of both amp types) - great just-this-side-of-breaking-up tone, saturated and articulate. As an aside: I wish more guitarists took the "less is more" adage to heart, especially when it comes to distortion/overdrive.