From Boak's Facebook page:

"Dick Boak That's not the true story! We were told that there was an accident on the set. We didn't know it was in the script. We certainly didn't ask if they wanted another one. We did ask for the pieces to see whether we could salvage anything. We couldn't! We got paid a fraction of its value because we had it on our books for what we originally acquired the instrument for. This is very upsetting!

https://reverb.com/blog/the-hateful-eight-hates-on-six-strings?_aid=newsletter&utm_source=newsletter&utm_campaign=175502ea04-rn1"

End quote