Bridgeton, NJ Precancel Questions

Just came across this:



Anyone care to comment about it? My observations/questions are:

[1] Is it a true precancel, albeit extremely off center and inverted?
[2] Is it a double overstrike precancel?
[3] What type of precancel is it?
[4] If you focus on the nose of the portrait in the second stamp, it appears that there is a faint imprint of the precancel in the correct orientation. Is this an unusual occurrence and/or is there a theory on how this may have occurred?

Thanks in advance for your comments.

Hi - yes it is a real precancel, Bridgeton NJ style 632 - PSS value 0.25.
The right stamp shows traces of a normal oriented precancel, and double inverted - 3 in all.
These precancels were applied in the local postoffice, maybe it was getting near quitting time...
or more likely right after a long liquid lunch!

Thanks for the info. It may not be worth that much, but it's a keeper as an interesting (precancel) conversation piece.