Clauss Automatic Safety Razor

[TobyC]

The Clauss Automatic is a very interesting razor.
It's the earliest TTO razor I know of.

There are two patent dates on the head:
Oct 15, 1906, which is this patent:
https://razors.click/patents/US838009/

Then there is Sept 28, 1905.
This is not a valid US patent date and I checked all non-US patents I could find, that were issued on that date.
None of them is for a razor.

Enjoy your Clauss.

I would call it "turn to open", as twist to open relies on threads for it's operation. This razor is push and turn like a door bolt, or a bolt action rifle. I don't think the Micromatic has lost its TTO crown to this.