If you ever wanted to own your own matching pair of duplicate serial number 2013B star notes, that can be achieved now at Ebay for $25,000. It is not an auction, but a "Buy It Now" listing. Should it sell at the price listed, it would be the highest price paid for a matching pair.
The listing can be seen here: https://www.ebay.com/itm/134219419130
Useful Links
Serial Number Submission Form: https://project2013b.blogspot.com/p/submit.html
Project 2013B Database: https://project2013b.blogspot.com/p/2013bdatabase.html
My store (currency themed items): https://rdbl.co/3Ms0Jp8
My store (general themed items): https://1zin.short.gy/2013store
