The ten million notes cheers me up every time!
- If that's your note I can understand why. The 10,000,000 note is exceptionally rare and seldom seen. Notes were hand numbered (I believe a zero must be added by hand).
& the grade does seem excessively liberal (with all the staining, creases, etc) even if it states "Net."
The UNC 63 on the Birds $100 mismatched SN also seems odd considering there is a very visible crease line right beside the "100" square gold foil marker. Any mismatched SN errors are a tough find too.