Unfortunately, since Michael Joly stopped performing Oktava mods in 2018, his site is no longer up. I did use the internet archive to pull this review up though:
"I really can't believe that this is the same mic that I sent. The modification is amazing, the sound quality and presence is truly astounding. This mic is now at the top of my mic locker and is used as often as possible. Worth every penny and more. Thanks for the brilliant work."
Or read this review - https://tapeop.com/reviews/gear/56/modified-oktava-mk-219
It came with a leather pouch, which I no longer have. THe box in the picture is for my MK-101