Elektronika MK-61 - today I ordered one NIB

[jebem]

I'm in the process of translating the Russian instruction guide.
To help me, I'm using information collected with the help of other contributors that have posted in this thread with useful links.

I have started this task by creating a diagram with the Latin transcription of the original Russian Cyrillic calculator keyboard.
And for that I have used the HP-67 as a inspiration model.

(Latin keyboard image was updated on 29-Sept)