Picked this out of the till yesterday. Not in great condition and not the lowest I've found but still decent:
The lowest number I've found in the till was #0000002. Very few people check banknotes which is a good thing.:smile
I've been checking them everyday. A friend had a customer come into his shop with an $50 error. The first I've heard about. It had two separate serial numbers on top of each other. Unfortunately, she refused his $1200 offer.
New polymer note. The only errors (besides the one I mentioned) were ink smears. It was a thrill to hear of a misprint.