Why are you asking? If you still have it, what's wrong with it? Take it to a local sheet metal shop, and ask them to copy it.
But it's easier to just put on the better (later) bumper, that doesn't need it.
https://supermotors.net/getfile/922798/thumbnail/bumperr8096.jpg
They have tried to repair it, (it has two rust pieces, broken right thru) and it’s just not the same. The welds aren’t great. It’s so expensive to replace, or even have it rebuilt. Not sure how to challenge this one now ..? This piece is almost impossible to find . And to be a collector, I need to find one.
Help?