Brother Typewriter Correctronic GX-7500 NEVER OPENED Made in USA

Brother Typewriter GX-7500
Correctronic
78k word-spell built in
Word-out and line correction
10/12/15 pitch typing
Caps lock function
Etc. See pictures for all specs

UNOPENED BOX: box is stapled old style and impossible to open and re-staple without evidence so you know it hasn’t been tampered with
Item weighs 12 pounds and that doesn’t include shipping box.
Buyer has to sign delivery

Buying as is: if there is missing manual etc or doesn’t perform I’m not responsible. Box has never been wet, had it stored in a closet all these years. Believe he got this in the late 70’s-early 80’s.
Again: item is new unopened box (so can’t test it) I will not guarantee it will work. I can tell you it’s been sitting in a nice office closet all these years with no moisture or smells.
The reason I won’t guarantee it’s working because once the box has been opened it loses its value and I won’t have to worry about someone stealing parts/pieces and/or returning after using with a fraudulent claim.