Posted these the other day on another site but seeing that we had not (at least I did find one) discussed or shown pictures in the past I thought I would start a thread. Will find the VIN or build date of the example and post. The car happens to be a Shelby but the pictures show areas of the trunk that are shared with Shelbys and Mustang
Hope this helps others
Looks like someone with a rattle can was playing around with the trap door prop rod or that area. Dolley mark is really hung on this side. Likely due to a replacement or hand built at plant replacement top screw on retainer that was installed on that side. If the dolly broke, needed repair or such in house workers were assigned to do what was needed to keep things running. Have seen this in rare cases in the past
The yellow stuff is likely glue applied to keep the mat in place. In the side the dolly shadow is pretty hidden by the rubber plug like we typically find