Small Pad Found in Trunk -- Anyone Recognize it?

[COPOZ/28]

I was rooting around in the trunk of my 05E Norwood '69 Z28 recently and I discovered this small pad tucked up close to the rear seat back.  Does anyone recognize what this may be, assuming it came with the car?  If it did, could it be a protective pad to prevent the bumper jack from scratching the chrome on the bumper?

[x66 714]

Looks like jute from the package tray or the sail panels....Joe