Buried in the middle of the roll was two KOH posters with the below image ! ! ! ! I almost fainted . I have never seen this available in my area . I could n't even talk , my best friend pipes up and practically yelled " She 'll DEFINITELY take that one ! " All I could do was nod my head . I had him to mount it on a board and am going to buy a frame for it .
Question: Why was the narrator so excited about the poster ?
The answer to the above question:


It is very rare .