Front bumper rubber trip piece in very nice condition from a 1972 280se 4.5. This should fit all 280se's I believe but please do your own checking/research and refer to the pictures.
I believe these are about $350 new from Mercedes-Benz Classic. Here's an original OEM Mercedes part in nice condition - rubber is soft and flexible and in good condition, and threaded attachments are good also. Don't know the part number.
Thank you for looking.