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The hollow ground blade used in the old Heljestrand Safety razor is very difficult to find as is the blade for the Henckels safety razor. A similar blade for a Kampfe Star safety razor is also...

Just looked at mine and none are all metal. Others with far more experience on the subject will hopefully reply.

Again, from what I have read, the aggressiveness of the black flare tip is between the blue flare tip and the silver flare tip, so kinda mild.

The blue Lady Gillette I would assume to be mild, but...

I have not used them but from what I have read they are a mild shaver.

So which razor is called the "Tennis" ?

Never mind, I Googled it.

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Gotta find a way to store these ......

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Gasman, ...... it seems you kinda like the Schick razors! :)

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The DE, second from left, is that a black flare tip? If so, how aggressive is it?

Never mind, I did a search and found out it is a rather mild shaver.

Thanks for posting this. It gives me some idea of what I can do for mine.
Glad I saved some of my felt to use as a liner.