Coca Cola Advertising Poster Original or Replica?

I need some help identifying this piece of Coca Cola advertising poster. I got it from an auction and I don’t know much about it except for what I finding online but I don’t know how to tell if it’s a replica or original? I used my DSLR Camera for the photos and did not adjust any of the colors. I used my zoom lend to get close up on some of these photos. There is one photo that has a Date of 1912 on the bottom right corner. There is another photo of the backing of the poster, It’s looks to be professionally glued to this board. The piece measure 17 .5 x 26 inches. I would appreciate any information regarding this piece of Coca Cola advertisement. I do have another piece that I received from the same auction and will post it as I’m looking for the same type of help on it. Please let me know if anyone needs more photos or information regarding this item.

Thank you.