Gillette purchased Wizamet around 1992-3 and continued to produce Super Iridiums, Polsilvers, and "Swedes" there until sometime after P&G purchased Gillette in 2005...Can this be the old Wizamet plant in Poland? (1990s to mid 2000's) Seems like a well educated assumption. The current newest production is made in Russia according the the packaging information posted by B&B users.
The Wizamet plant in Lodz, Poland was then converted to production of plastic razors and cartridges, and the DE blade production was moved to St. Petersburg, Russia. (The big honking glue spots are a trademark of that plant.)
I was not aware of Bleue Extras being made in St. Petersburg, or anywhere for that matter after the Annecy plant closed. Been shaving with an Annecy Bleue Extra this week. Close and clean shaves, but not as smooth as a Shark or a Treet Durasharp Classic.
Even with 10 blades packed in the white plastic dispenser, sliding the first one out took some effort, but did not requre breaking open the case. There was a slight hint of the smell of oil, but to me it was nowhere near as objectionable as glue/wax spots so big they encroach on the edge of the blade.