data abbreviation "N.K.O.-J."

This isn't a question about identification of an insect, but is about an abbreviation that came with the data on some specimens from Africa received by a Russian contact. He asked me if I knew what N.K.O.-J. stands for. He said it's the initials of the original owner of the specimens whose collection has been sold.

Anyone here know who the abbreviation refers to?

Adam.