Is this the original seat cover?

[bh86]

I picked this 74 up today and it is an extremely nice original truck. Dash is still uncracked and the rest of the interior materials are in excellent condition. The gentleman I bought it from is the second owner and didn't know for sure but thought the seat was all original. The build sheet is still in the back but I can't tell if the cover is original or not. I'm not as savvy with the 73-80 trucks. If anyone can actually tell if it is or not I'd appreciate it. I'm more curious than anything.