Is This Ken Wall Lou Gherig cardboard add real
 

How can you tell a reproduction from the real thing?
thanks in advance

Modern piece. All of them with metal eyelets are modern. They seem to always be beaten up and stained, which suggests deception is often involved.

I can tell you that the eyelet ones have a dot print matrix throughout the entire front, while originals would probably have areas of solid ink, such as at the bottom lettering areas. I've never seen a real one and it's possible there is no dot matrix anywhere in an original.

Has a real/authentic one ever been verified? I thought these were all perhaps "fantasy" pieces, produced at a later date.

I was under the impression there never was a vintage cardboard ad and that these are all modern fantasy pieces.

I thought they were fantasy pieces, but didn't know if there were original related pieces out there.

Fantasy only

my nickle
 

It's a known fantasy piece - regardless the one showing has many of the signs of not being old. I had never heard about the eyelets.

fantasy piece all the way there never was a real one

I've NEVER seen a originall myself. I to believe they are imaginary pieces brought to life.