Gombert Chr.A. Et Soeur, Halluin France

The logo, which isn't very clear on the card, is a monogram of AGS. The identification is from a site which covers the field of "picture scraps". Several other postcard publishers (eg BNK) also appear on the site.

The example card was probably printed between 1896 and 1899:
1896: Printed text - République Francaise
1899: Printed text - Carte postale