March-22-1950-FBI-memo-on-crashed shape

 https://www.theufochronicles.com/2011/04/march-22-1950-fbi-memo-on-crashed.html

There are so many kinds of shapes and sizes of crafts, ships or vehicles.

https://www.theufochronicles.com/2011/04/video-dr-bruce-maccabee-decodes-fbi-x.html