looks original to me as well. i don't see any signs that would lead me to believe differently. i have owned many of them and they look legit
I love these double mint sets. If I had "all the money" I would buy "all the sets." The toning is attractive enough I think (if I was selling them) I'd get some really good photos and list them all individually. Is that what you plan to do?
That Washie looks very nice. I don't collect them either, but I would be happy to own that one. Nice Frankie as well. Well done on the set.