Picked up a brick of FEL. Numbers 277/777 and 499/999 were missing. It looks like these notes were ruined and replaced because the sheets slid one way or another while being cut. The miscut notes were replaced with 2 ( same sheet ) pairs of FEM. The FEM inserts are not the same size as the FEL's so they were obviously replaced after the half bricks were cut. The oddity is that the front and back position numbers match in each half brick but the numbering is different. Could it be possible that the sheets used for the FEL's were from one plate and the FEM's from a different plate. If so then it seems the position numbers were set differently on both sheets. Have a look at the pic and take notice of the center digit. Let me know if you can figure this one out. Gary