This is a reprint of the 1951 model of the "Metric" series. Features: The Claire Fontine classic notebook line has been popular with the "Metric" series. It has over 60 years since the production begins. To commemorate this, the Back to Basics 1951 was a reprint of the 1951 model at the time of production started. The origin of the classic notebook line boasts a basic design that can be used even in todays ages over 60 years, and you can experience the same qualities of Clerl Fontaine.