Hello.
I think that would be Jean Granvigne, check here:
http://www.925-1000.com/Ffrench_makers_J.html" onclick="window.open(this.href);return false;
Jean Granvigne succeeded Cordonnier & Granvignein 1868.
Succeeded by Granvigne Freres around 1889, and after 1900 L. Granvige
who continued to use similar marks.
Pat.