I need your help one more time :)

[Anto]

Hi everyone,

I need your help for this french mark :

[Zilver2]

Hi,
Mark of the manufacturer jeweller Moïse Vierny.
64 boulevard de Strasbourg, Paris
N° de garantie : 3130
N° de préfecture : 15970
Symbol : a king of chess (un roi d’échecs)
Mark entered : June 4, 1920

[Anto]

Thanks a lot for your very fast answer Zilver2 :-D