One of the few bad transactions I have had on eBay occurred when I bought a George Seeley Camera Work photogravure of "The Firefly." I got it relatively cheaply since the print had one corner that was "creased" just inside the image area. When it arrived, the entire corner fell off as I opened the package. There was no damage to the shipping carton and I suspect the corner was torn before shipment, but I had no way of proving that.
I got a similar story from USPS-they would reimburse me for the entire insured value and then destroy the print. I couldn't let that happen to a fairly rare print of my favorite image of all time. I remounted the print and glued the corner in place with almost no indication of the damage unless really scrutinized, but the collector value has certainly decreased because of the damaged corner. I have it on my wall and I'm glad I saved it.