Help with verifying/identifying maker's marks on this podstakannik, please.

[Atlas]

So help would also be appreciated with identifying ( St.Petersburg / 1883 ) maker's marks ( P.K = Robert Kohun? ) on this podstakannik (in the pictures below ) if you please.









Regards,

-Atlas-

[Atlas]

Height: 9.3cm
Weight: 162.2 gr.

[Qrt.S]

Yes, Robert Kohun in ST. Petersburg 1842-1883

[Atlas]

@Qrt.S.
Thank you (once again) for the re-assuring point of yours. Sometimes even I appear to find myself with a correct point of view from the start.
Best regards,
- Atlas -