Corners Missing On $2 Bills

Never heard of this. Do you have a source for information noting the number of bills.
ie. hundreds, thousands ....... of bills with missing, torn off, corners?

the superstition goes That 2 dollar bills are bad luck so you tear off a corner to get rid of the bad luck and if you get a 2 dollar bill with all the corners gone you rip the bill in half.

The thing with this superstition, of course, is that banks will withdraw $2 notes with torn corners as being damaged, rather than re-issue them. Back when the superstition was commonly held, it helped make $2 bills even scarcer. That $2 bills tended to be thus "damaged" more frequently may have also led to the prejudice against the $2 bill from the banks, which has always been the main obstacle to getting the $2 more widely used.

Of course, it's now been a couple of generations since $2 bills were likely to be encountered in everyday commerce; a superstition needs to be based on a rare but not impossible occurrence if it is to propagate. There are far fewer people that believe this superstition now than there were back in 1950.