One immediate difference between US and Canadian models of that time is that you did not see US Sears dryers with a side-swing door. Also note that it is rated at 6000 watts. That is possibly the "Hi Speed" feature of the dryer's Soft Heat. If it worked like newer electric Soft Heat models, it would have had two heating elements, one at higher wattage and one lower. The operating thermostat only cycled the higher wattage element so that heat was being supplied constantly and the drying temperature did not have the great dips that usual disc thermostats caused when they had a 15-20F swing between cycling off and cycling back on. A dryer that drew 6000 watts would have been hard on its circuit breaker over the years because 6000 watts is running right up against the limit of a 30 amp breaker. It won't trip it immediately, but over the life of the dryer, it can affect the temper of the metal in the breaker and cause it to start tripping for no reason involved with the dryer or the circuit so the breaker will have to be replaced.
I remember that control panel from the early 60s.