Here's a couple, including two NOS header panels (one stamped, one not).
68 Z 06B stamped "6"
69 NOS stamped "43"
69 NOS tagged, no stamp
69 X66 12A68 stamped "43"
69 X77 01C stamped "2"
Observation - the two NOS panels obviously differ in manufacturing date, you can tell that the die was wearing out - unstamped panel has a few wrinkles in the understructure, but still good GM OE quality heft and feel. The one stamped "43" is really good, smooth and heavy. Original EPDM coatings on both.
Regards,
Steve