Strange 84 quality mark

[Qrt.S]

Hi, I’m completely lost with this quality mark of 84 and a head I profile. I have no idea wherefrom it comes. It is definitely not Russian but it could be Polish maybe Romanian, anyway from a country close to the former Russian sphere of influence i.e. eastern Europe. I would appreciate if some one gave me a clue.

[dognose]

Hi,

A photo of the whole piece may give a clue to the dating of this mark.

Trev.

[Qrt.S]

Here is the required photo of the whole piece. It is 5cm high. However, I get the impression that the lid actually doesn't belong to the rest. Its quality is not the same.