Paulyy's is a Westerly Collection, those are done differently than GAD's even though from same factory.
They're built to new owner Cordoba Music Group's specs now, even though still have a lot of GAD DNA in 'em.
Pauly: in case you didn't know, "GAD" stood for
Guild
Acoustic
Design, a line introduced by Fender in late '03 and which first appeared in the spring '04 Guild price list.
Guild USA had nothing to do with marketing or manufacturing 'em, but since Fender owned the 'em and rights to the Guild logo etc, they put it on those instruments.
To be fair they did use a lot of Guild design elements.
I think in fact they may have been based to a large degree on the actual spec drawings that Fender developed during the period after they bought Guild in '95, in preparation for revamping the line which started in Corona in very late '01.
That project was described in this article from Vintage Guitar:
https://www.vintageguitar.com/21567/guild-in-the-post-fender-era/
I don't have any independent confirmation of my hypothesis, but I think it's beyond coincidental that the GAD line appeared during the tenure in Corona.
All by way of saying that these MIC guitars sis in fact start with genuine Guild design elements and weren't just a Chinese factory's stock product with a Guild logo slapped on 'em, they weren't just "Badge engineered" as some call it.
I'm sure CMG is continuing that design principle and in fact has taken it to another level with the variety of products offered, like your own OM240 which would translate to an F30
archback under the old US-built nomenclature, and in fact I don't think they ever
built an F30 archback. Not that I recall at the moment, anyway.
OK , S/N: Pretty darn sure it's got be 2019, and the only method of narrowing it down we've seen so far was in Ralf's post #1 in that other thread (I see you just hit it this AM but also know that if you use a mobile device, viewing previous posts can be problematic):
SO for sure Ralf wasn't sure if his model was "100% correct" back then but suspect it's darn close.