I'm sure this has been answered

[Icemanxxxv]

I have two Superspeed and I'm looking for the location of the date codes. Where are they on the razor?

 

[infotech]

Look underneath the head of the razor. They'll be on either side of the handle, or a letter on one side and the number on the other.

 

[r0ckrat]

See AsylumGuido's SuperSpeed Thread for yet more info. If it's the early type (40's) it may not have date codes.