For your consideration I have a vintage Baltimore Orioles Popcorn Megaphone.  Never used.  Use the Zoom feature to pull up close and look at all the photos I have for your viewing to see the condition.   The one close up photo of the small end shows what looks to be a small piece of the cardboard missing.  Been that way all its life as never unfolded from being flat.  This is a no return so ask all questions before purchase.  Thank You