Russian armoured unit photos lot

[grandads-kitbag]

HI ,this came in to day , not my thing so wold like to move it on please , can you clever guys confirm if these guys are Russian tank unit and a rough guess what time frame , thanks , will add pics of the writing on the backs

[grandads-kitbag]

as

[grandads-kitbag]

asd

[Eric Gaumann]

Early to mid-50s would be my guess. No date on the doc?

[Bagration]

Same for me 50s early or late ...
We can see two heavy's JS3 tanks on the last photo

[grandads-kitbag]

thank you gents for all your efforts , off to e stand

[Komandir RKKA]

Short time existed M49 uniform.