My first memory of dad shaving was with an electric razor.  He had a Schick. I also remember watching him clean the razor. 

One day, the Schick stopped working and he had to use a  Super Speed.  He had the mildest one, the blue tip, but he cut himself several times.

Next day, he bought a new electric razor, a Norelco.

I have his Super Speed and I will be shaving with it on Tuesday, dad’s birthday.  He would have been 90 this year.