Thanks Jeff. OK, perhaps as you stated, I might have a Ford service part wherein no date was stamped into the metal. I suspect that is the case, yet I don't like the possibility that I *could* have a 20-yr old repro that someone used as a core when they bought a re-chrome bumper. There's just no clear way to tell. It's a long story, but let's just say I have a lot of $ tied up in this non-date-stamped re-chromed rear bumper and I am so mad at myself for not realizing it was missing the date-stamp before I paid in cash.
If anyone has suggestions and/or pictures of possible ways to help learn whether or not my bumper is a ford or repro part, please let me know. Thank you.