my dad was the owner & editor of a small town local newspaper for 40+ yrs and after that ran a printing shop. He passed away 5 yrs ago and we are cleaning his office and shop out to sell the building and have found in the attic boxes and boxes and boxes of old negitives. Some the size of newspapers and others in various sizes. I was told he use to sell these to someone in the 70's for the silver in them, but when silver prices bottemed out they quit buying. My dad still keep saving them.

Are they have any value? Have they been ruined because of the Louisiana Heat in an attic? If nothing else.................. will they burn in a bon fire because there are thousands of them.

Thank you in advance for your help