The Perocut Filmschneider is a vintage Swiss-made 35mm film cutter. It's primarily designed to assist in slide/reversal film mounting. It offers an an illuminated base and markings for various size formats. It's also handy for various home darkroom talks (e.g. negative strip cutting for filing in sleeves).
The original box and manuals in English, French, and German are included. The lamp is working as well but please note that this is the North American version