My Transistors, original or copy?

[Mark Tillotson]

I just bought 4 pcs of 2SK2013 from physical shop in Zagreb (for 6 Euro per piece) which are obvious fakes, Vgs measures 3,6 - 3,8 V instead of around 2 V. Pictures are on this post:
https://www.diyaudio.com/community/...ttle-fb-160watt-amplifier.412261/post-7675832

That's not anti-static foam - first rule of MOSFETs: full anti-static precautions are required - if that's how the shop sold them that was a huge red flag, the devices could easily have been zapped already.