Yes they are bannisters from the staircase , the other item is wallpaper or 'frieze' I think it is called..
In the soviet times everybody lived in a type of fear , nobody wanted to do anything that would draw unwanted attention to themselves.Very few people would have been brave enough to even talk in public about the house or what happened there even if they knew about it. It was a time of "keep your head down" and say nothing, especially between 1918 to 1970. Sverdlovsk , yes ordinary people could not move between regions easily , no visitors at all , except 'officials'.
Those colour photos were taken by man called Pavel Mikhailovich , so the thanks go to him. There are some more in that set - I will post some.



In the background you can see 'cranes' - Sverdlosk was undergoing much re-building in the 1970's - Apartments , buildings , factory etc.