Man it looks like it could be, even looks to still have some of the brownish tint to it, but I'm thinking close but no cigar. If you look at 6bblgt's Sport Fury top it looks like in the closeup pic at least some of the scales seem to have little tick marks in the original material, where yours doesn't appear to?

https://board.moparts.org/ubbthreads/ubbthreads.php/topics/2327508/5.html

Also in addition to the 1969 date code the original stuff is stamped with 'Stauffer Chemical' on the back, might be the biggest giveaway.