You were misinformed. Gillette Rubie® and Gillette Super Silver Platinum® are not identical razor blades. Two separate sputtering agents are employed in their manufacture, as well as a different final hone.
You again, you rascal!! Mischka, you seem to be 'in the know' about Gillette Russia and keep teasing us with these juicy tidbits from time to time. Come clean and give us a list of which is which so as to set the record straight and as well which in your opinion is the best.
... But it is certainly the case that he disputes only some claims while remaining silent about others.
Your Super Silver are fantastic blades. Much smoother than current blades, in my experience. Enjoy the shave.
I'm using my next to last blade of British Gillette Super Silver Stainless ,1966 L-3 this month.....On shave #7 , smooth and extremely sharp ,I'm hoping to get 10 nice shaves from it.
There are also French made super silver platinum plus blades from that time period, if you keep your eye out