$5 1981 FRN CONSECUTIVE PAIR : BACK TO FACE OFFSET ERRORS Sequential Printing Mistakes Gem

Buying a single partial back to face offset error isn't too challenging for error collectors; however, securing a sequential pair of seemingly identical mistakes on consecutive serial numbers is quite impressive! The left shows a partial back to face offset error featuring an ornate offset on this original and uncirculated pair.  Two great notes; one low price.