These old style Personna Medical Prep blades were in a blade bank included with a vintage razor I purchased. I have not used one yet but will eventually give them a spin to see if they are a smooth as the current day ones that I have. Note: One side of the blade has glue spots. Blade is marked "Made in USA" on one side blade table and "C 4" on the other side.
Some of those old boxes of hospital blades if from the 70s are actually personna 74 blades, the ones I have seen just say tungsten blades on them but don't have the 74 logo on them.
Very smooth. First shave with a NEW SC and 2nd a 06 Single Ring. I would compare with a "Spoiler". Just glides like no buddies business.
