Autographed Brazil Notes History

rmuniak

I like giving talks about my banknotes to my clubs. I am now investigating the history of the 3 notes from Brazil pictured below. In Numista there is a vague description insinuating that all of those note were hand signed by several inspectors. I find it hard to believe that every one of the 200 million notes printed (100, 50,50 respectively) were hand signed.
I have tried to research it but have come up empty. Does anyone out there know any info, or can lead me to the info... Thanks Ray

Serial_no_8

I don't know much about these but I have seen them on eBay. Sellers have usually called these "hand-signed" rather than "autograph." The later term 'autograph' implies somebody famous had signed it post production. But I do believe that these older hand-signed notes have been signed by the chief cashier (or other bank official) & are usually more sought after/collectible compared to the newer/mechanical intaglio or lithographed signed notes.