Comments on https://lichess.org/@/theandrei/blog/ussr-chess-school-chess-machine-factory/B9zjHmDU
In the first photo, I think that there is not Botvinnik. The man on the left looks like Efim Geller.
A larger photo
https://cs6.pikabu.ru/post_img/2017/07/28/7/og_og_1501238274219974264.jpg
Or, according to this web page, Fiodor Scripcenco
https://noi.md/md/analitica/90-de-ani-de-la-nasterea-legendei-fiodor-scripcenco-omul-care-a-invatat-moldova-sa-gindeasca-in-miscari
I think you are right after all, thank you for this important comment, I will correct the discripcion in the near future.