Vertically Oriented Precancels (Or Box Cancel?)

I know that vertically oriented precancels are typically limited to coil stamps, however, how would I classify these? They don't look as if they are box cancels (but could I be wrong)?





(Excuse the horizontal lines from an album page that shows on the above scan, as I didn't want to remove the stamp for scanning).

Also, if they are precancels, what precancel types are identified here?

Any comments would be appreciated.

Thanks.

Poughkeepsie PSS-608 and East Aurora is L1 or L2 hard to tell from the scans. EA is always found vertical. Poughkeepsie is unusual, but handstamps come in many orientations.

Thanks again for all of the information.