fender 3 4 guitar

Difference between 03.04 and full size classical guitar?
I have an old Fender "Gemini I" 80's classic, the neck looks very short for me, how i if it is a full-size guitar or not say?
A size of 3.4 is about 2 inches small in the fighting top and bottom of a full size. The neck is also usually a few short frets. Most classical guitars 3 / 4 size. As is the Gemini.
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