A note with something special...Can you figure it out?
WARNING: This may require the use of reference materials and some research. If you do not have those things, it may be difficult.
Here is a $2 Canal Bank, Portland, ME dated 1835. There is something a bit special about this note.
Can anyone figure out what that may be?
This is not meant to be stressful. Just a bit of fun for the astute obsolete collector those who like to do a bit of digging