1971 Dodge Challenger Glove Box Liner Question

I need to replace my glove box liner, but noticed that there is a thin metal piece that is riveted to the top and bottom pieces of the liner.

Is this original as I do not see any of the reproductions offering this reinforcement piece?

If original do most reuse this piece when replacing the glove box liner?

That's not ringing any bells....got pictures?

here are some pics

another pic

Yet Another pic

Never have seen that "?" Looks to be added to "shore-up" cardboard that got wet? or failed somehow?

Definitely looks like a prior owner add-on.

not original...

that's what you had to do back in those days when they stopped making them..

Thanks everyone

pretty obvious by the tin snip stop and go cut strokes that it's home brewed, but always best to ask, if your not sure