Out to Lunch
Veteran
That is 'discovered'. Bit of a ridiculous headline but there you go: https://petapixel.com/2018/03/12/russian-vivian-maier-discovered-30000-photos-found-attic/ This page has some interesting links.
Vivian used Leica, BTW. Person in OP, I'm not sure. Why not Zorki.
The issue of curation of the images in key. Go through all 30,000 images and publish a book of the top 200. Then let's talk.The selection of the images to publish is big part of the photographer's work, with this being published after Ivashintsova's passing, the daughter can make or break the photographer's public image now with her image selection.