Chalk this post up to having been looking at precancels too long and having no catalog to referece. Anyway, among the thousands of precancels I've looked at recently, these four seemed to me to be rather unique...but maybe not:

Stamp #1 (Ferndale, NY) seems like a relatively small town (pop. <800). I know the post office still exits, but I would imagine the number of precancels from that town wouldn't be that extensive.
Stamp #2 (Atlantic City, NJ)...Is it common that the "City, N.J." should be on the same line?
Stamp #3 (New Orleans, La.)...Is it common for such a wide gap in the double line precancel?
Stamp #4 (Baltimore, Maryland)...Is it common for such a wide gap of space between city and state name? (Also, it appears that both "Baltimore" and "Maryland" ends in a period.)
I know there are tens of thousands of precancel varieties and most are common, these just seem to me to be a bit out of the ordinary.