Duplicate book is not a big issue these days. My car was devalued by only 10k when I sold it to a dealer.
Cultus 2003 market value : 450k
My car 2003 sold at 440k , yeah, 70% of the car was painted and engine needed overhaul.
For this car, I would say, devaluing 200k just for a book wouldn't be a justice. He would only reduce the price by 20k max.
I hate the dealers who have made all these norms that if you have misplaced a book or plate or file, it's gonna devalue the car by a lot of margin.
Sorry for being a little off topic.