The SE Razors area listing of threads of interest has not been updated since 1912. IMO the following threads appear to me to be of lasting value as reference threads for SE razor collectors as well as users. Please add to the list any threads that you feel are of lasting value as reference material that belongs in threads of interest list. I am sure there are many more than those in my list.
CV Heljestrand Wedge Blade Safety Razor Variations
Oddball Old Razor Threading
Rapide and Wotan Variations
AutoStrop/Valet Razors: A Typology in 13 Parts
Modern Blades in Vintage Single Edge Razors Guide
Lather Catcher Damage Concern
thread size on gem/eveready razor handles
CV Heljestrand Wedge Blade Safety Razor Variations
Oddball Old Razor Threading
Rapide and Wotan Variations
AutoStrop/Valet Razors: A Typology in 13 Parts
Modern Blades in Vintage Single Edge Razors Guide
Lather Catcher Damage Concern
thread size on gem/eveready razor handles