A light fisking:
the double-cutaway lightweight and relatively balanced guitar
"Relatively" is the key word here. If you bung a pound weight on the tailpiece, it'll hang straight.
was made in 1961 by Decca
IOW, they were cheap imported guitars mass-produced by Teisco before Japan got good at this stuff, available from the likes of Sears Roebuck by mail order, suitable for beginners who didn't live near a music store and had nobody to give them better advice, sold by a company trying to cash in on the Decca record label brand.
with a tobacco sunburst finish,
Once upon a time it
had a tobacco sunburst finish. Those days are now firmly behind it, unless you like looking at its unmarred back.
maple neck and rosewood fingerboard
We won't mention the body wood because youdonwannaknow.
It has one pickup that is described as age-appropriate and gives off a rockabilly tone,"
It was a cheap and nasty pickup even when new, and age hasn't been at all kind to it.
with knobs for volume and tone control
If you get fed up trying to get guitar sounds out of it, you can use it to scratch, yo.
theres some wear on the 20 frets, they are considered to still be in excellent condition
It's a beater.
The electronics are functioning
If you plug it into an amp, it makes a noise.
but the guitar needs to be set up
The action is an inch high at the 12th fret. It has to be, otherwise it buzzes like a sitar.
If you're going to buy it, plan on hanging it on your wall. Describing it as "a guitar" is like describing a
decorative cheese slicer as "a harp."
But hey, it's for a good cause.