Guild-spotting's almost as much fun as car-spotting in old movies.
Easy cues are headstock inlays, neck inlays, and body shape.
The F30ce for example was a blinged-down version of the F65ce and was actually dropped when the F-series went long-scale in '94.
It's sometimes confused with the actual F30, but that was on hiatus at the time so it wasn't technically a "misnomer". But '90's F30ce's are definitely 16" lower bout F-bodies. (F30's, like Songbirds, were roughly 15-3/4" with some minor variation over the years)
The F45ce was introduced in '84 IIRC and introduced that 24-fret shortscale neck I mentioned. On dot-inlay versions the tell is the 2 dots at the 24th fret.
It also occurs to me that if you're leaning towards traditional flattop as opposed to the Songbird construction, you might be interested in F
47ce's which made a very short appearance in late '80's IIRC and then was re-issued in '98.
By 2000 there was also a maple F47Mce
In Tacoma they revived the Florentine cutaway on a new (1-3/4" nut) neck attachment design as the "CV-2", but sadly the implementation was less than ideal. It was one of the rare occasions when they truly built some sub-par instruments. Necks were said to have been insufficiently dried and twisted within a short time resulting in a spike in warranty claims. Closure of Tacoma and liquidation of unsold and warranty return instruments through a refurbishing house further damaged the rep of that series.
To be fair many owners of well built-instruments love the sound, and the refurbishing house, MIRC, is a reputable business.
The F47"-"ce's returned in New Hartford through close in '14.
My personal pipe dream unicorn is an F47Rce with the 24-3/4" neck and a 1-11/16" nut. I've never seen one yet and the spec on that neck was always 1-5/8. I suspect because it was always intended to mimic the feel of an electric neck.
Given Guild's known variations on nut width even in the same year model, I can only hold out hope that maybe one oddball really did get out, but have even checked with owners over the years and it ain't showed up yet. I suspect they never messed with the template for that neck. Maybe they already had a ton of fingerboards cut.
Yamaha just bought 'em so maybe they'll hear my plaintive plea in the dark.
In the meantime I don't have to worry about trivial issues like cost.