Looks like sharpz not Bee to me. But I don't know how many overlap models there are. They both made the rotary dial. I personally have one of each. But the purple color looks like the lineagraph from Sharpz. Same with the micro dial looks like a sharpz. The rotary dial is too hard to see clearly. If it is purple I would say sharpz as well but the geometry looks close to the old Bee that I have. Any markings on them?