I have six Super Speeds, ranging from a late 1940's to a 1960 Flare Tip.
Here are the '55 Blue Tip, the '53 (birth year) and the '52 Super Speeds. Three amazing razors.
I always shave with one of my vintage Gillettes every Sunday morning. It's become a tradition.
I decided to compare a recently purchased ‘58 blue tip to my favorite Super-Speed, a late ‘40’s. From what I’ve read it’s likely a ‘49.
The ‘49 gives me an effective, efficient shave with no blade feel, every time. The ‘58 was very close in performance but I could feel just a bit of the edge.