Ok, I looked at the mat cutters I have.
They are not exactly the same, but I believe they were both made by Keeton Products. Their differences are minimal and one looks like yours. On one there's a label and Keeton is mentioned, along with Jobber.
Attached you find images that should help you further.
These machines may look old, but you can cut beautiful mats with them. I had the 'squaring' bar on one of them, but found it useless. Below some suggestions for use:
- use a soft pencil to indicate sizes on the back of your mat (don't 'draw' the whole opening - after cutting the mat you should erase the pencil marks as they will be transferred to the print you are matting)
- teach yourself using a not too thick mat-carton at first, 3mm for instance.
- where to start the cut and where to end it, you need to find out but it is slightly outside your indications
- if the cuts show on the front side, 'close' them with the nail of your forefinger. You just press the cuts to close.
- turn the mat clockwise after each cut, so you cut into the previous cut right away
- change the blades often. When you start seeing rough looking cuts you are too late.
Something like that, good luck - Michael
