Saw this on Armslist. Though I'm no longer a member there, I keep looking for certain 29s/629s. Anyway, obviously a trap (haha). Answer is, "Hello, officer."
https://www.armslist.com/posts/13127401 ... vent-traps#
As on Armslist
As on Armslist
Hurrah for the Bonnie Blue Flag that bears a Single Star.