When I bought a vintage Hungarian-made safety razor from an ebay seller, included with it was a single Спутник (Sputnik) Soviet-era blade. The front and back of the blade’s wrapper are shown above. The razor wasn’t a great success, providing so mild an attack it was laborious getting any kind of close shave with the thing. Perhaps it would have worked better with the Sputnik installed, but I wasn’t so brave as to try it. The razor did at least come in useful that once I shaved my head during the first Covid lockdown.