Maker of this Silver Chinese Vase - help

[robertoalva1]

I am trying to identify this mark in a silver Chinese vase , please help me.
I attach the pictures

[dognose]

Hi,

Maybe it's just me, but the last two marks have similarities with the 'Pure Silver' marks used in Korea.

See: https://www.925-1000.com/Fkorea_01.html

Trev.