Miniature ( 1 5/8 x 2 5/8" ) facsimile cover envelope, instructions on back saying that the enclosed seal (missing) should be placed at the bottom of a policy page.
A place for show-and-tell, wondering aloud, and wandering the trails of curiosity . . . Comments, corrrections, additional information, fresh insights, other interpretations, more images, or related observations will be welcomed!