Maybe you could call them but I dont think those informations are publicly avaible
As a terminus ante quem ; From the research I had done in 2018, They stopped to use the embossed logo around 1995/1996 and they started to use the 3 letters cert. around the end of 2011.
they also changed the typo used around the end of 2021.
''Buy the very best, stretch to buy it. It means if you can't afford to buy it, buy it anyway."
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