Purchased 10 of these in with my last order from Connaught in the UK. Connaught claim they are the Russian variety. I tried them for the 1st time last night. In my R41. A very pleasant shave indeed. Nice and close, no nicks or irritation. Ranking above Astra SP and the Yellow Supersharps in this razor although I think Feathers are still my favourite .
Just need to see how many shaves I get out of this blade now.