Help Needed with Soviet maker *43P*

[Ajzyk]

Hello,

I have this soviet ring 583 city K - what city is K?
Also anyone knows the maker's letters? 43P as shown on photo?

[ALEKS]

[Ajzyk]

Thanks for the educated and ilustrated answer.

As for the name " Jewelery workshop kiev" is the name of the manufacture? or its a generic name for a workshop?

Thank you

[ALEKS]

Hello.Jewelry workshop, which is located in Kiev, Ukraine.