Fr.230, This is the unique pair of notes that represent the first & last notes printed of the E-E Block Napier-McClung Black Eagles. The Serial Number One notes are always popular and occasionally available. The One Hundred Million Serial Number notes are significantly more rare and are hardly ever seen. The nine-digit number was required to be hand set, as the numbering machines would not allow for more than eight digits. The subsequent notes printed would start with number one of a new block (Sold)