Value of Tranquillo Giannini s.a. Guitar

[lovejodie]

Hello. Brand new here so I apologize if I'm doing this wrong. I'm trying to find out the value of a guitar that was left to me. The sticker inside says that it's a Giannini Guitar. Model N.o 6, Serial N.o 12990, 10/65. It came with the original case, conservarte guitar pitch pipe and First Act MGT-02 Auto Guitar and bass tuner. It's in excellent condition. I have pictures but I cannot figure out how to put them on here. Any information or direction would be greatly appreciated!

[Bluemonk]

There's a '69 listed on Reverb for $399. It looks to be in pretty good, not great, condition.
https://reverb.com/item/6174392-gian...TXvD_BwE&pla=1

[lovejodie]

Thank you!