I've had this one for 25 years, and it has been used and abused. Industrial strength. It was made by Master Appliance Corp. in Racine WI. Model HG501-A, 14 amp, 260 - 750 degrees with a high and low switch.
The secret for long life, as with a projector bulb, is to let it cool down on the fan only setting before shutting it off.