Jose, the inversion of the precancel most likely was due to the sheet being inverted at the time of printing, Not uncommon but a little bit more scarce than the normal. Value wise there is no real additional value added for it. The strip of 3 tho is a nice thing for a collection.
Came across this NY Precancel and have been trying to determine type. I haven't been able to find anything similar and wonder if this stamp precancel is simply under inked. Any help would be appreciated.