Passenger side trunk floor extension - Dart/Valiant

I have an unused passenger side trunk floor extension. It’s new but I don’t know who made this part. It was in a 70 Dart parts car that I bought. It appears to be in perfect shape and ready to install. It will fit the 67-76 Dart/Swinger and the Scamp/Valiant model cars. Maybe others as well. I’d like to get $50 plus the shipping.

Ken
Edison, NJ