How in the world can anyone say that there are no such thing as teeth(fin) and striations! They are obvious! I can see the striations with a 30X microscope! The only reason that they are not visible in the Vanderhooven(sp?) PDF doc is that he has a large amount of reflection! When I am using a microscope If I tilt it just right the image gets brighter and become a glare thus obscuring the striations. In terms of
"teeth" on the edge I would not expect to see them except under much higher magnification. The max tha was used in that study was 3000X and most were 800X.

There has been over 100 years of straight razor use and studied by many people. They have concluded that there are "teeth" on the edge and frankly I am not willing to disregard
the accumulated knowledge based on just one picture.
Vanderhooven did a nice study but it is far from definitive.

This "no fin" "no striiation" nonsense has got to stop.
Show me proof. Its like saying that hair follicles do not have scales ( thats been seen in microscopes for years) If you doubt that then start reading a barbers textbook. I have one I can loan you if necessary.