need help to validate my Russian Green Big Muff circuit

[metamp]

I purchased a Sovtek green muff and looking at the circuit which doesn't look like any of these on the muff history page
http://www.kitrae.net/music/big_muff_history2.html

it looks more like the circuit on this site http://rkerkhof.ruhosting.nl/Taas/Mods/Big%20Muff.htm

I'm not sure if it's a legit Sovtek green muff circuit
can someone help to identify/validate it
thx