When and who invented the straight razor?

No one knows who invented the straight razor for sure. Narrow bladed folding razors were first offered for sale in 1680 in Sheffield, England, and in 1740 we know that a man named Benjamin Huntsman had invented a new process for making them and the way that he made them spread to other countries, but that new process is the closest we have to being able to identify a single person as an inventor of the straight razor.