Wassily Chair Origin (again) w/pics  

Hello. I've spent a few hours reading about the variations of the Wassily chair as I recently purchased one from an office liquidation. I believe it is a seemingly well-constructed replica and was hoping some of you can confirm. The chair does not have any labeling or engravings.
It features the following:
Welded flat end caps
Flush screw openings
Silver hex screws (not black)
Two holes where legs join
Two holes near each corner, one utilized for plastic glider
2-piece strap construction (except bottom)
Plastic on bottom reinforcing seat
Thanks in advance for any help. Let me know if you want photos depicting other details.
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