Gillette Ball End Tech NDC (declared 1947) Birth Year. It's also a great mild shaver with a Feather blade.
My face didn't take well to Super Speeds for some reason, so I didn't use any of them very much, but as I remember none of them gave me a really "GREAT"(close and comfortable) shave. TTO's are not my razor of choice(I like 3 piece razors), however I much prefer either a 47-50 Aristocrat, Diplomat,President or one of the Gillette adjustable's over the Super Speed.
I have both birth year and quarter razors. A B3 '56 Blue Tip, and a Red Tip complete with case. Plus a couple of other birth year only Blues and Reds.
Yeah I already talked to my wife - he has birthday at the end of the month - I may be getting him a replacement - I hope