how to value this vintage levi's top? embroided levi strauss

Hi guys!
Recently we've been going through my dad's old clothes and found out this beautiful tank top(?) / T-shirt with unique navy embroidery "Levi Strauss". I searched through the internet but can't find anything similar to it.
It not longer fits my dad, nor it's my style so we decided to sell it but honestly can't evaluate a price. It's in a good condition and probably dates back to the 1980s. Can somebody tell us how for how much should we resell it? Thanks!

 

Ok, sorry for that!