I loved this style as soon as I saw the picture, from a 1910 pattern in La Semaine de Suzette! It clearly harkens back to the French Bebe styles of the 1880's, yet has updated details for the stylish French child of 1910.
I had to re-draft the pattern considerably, and you will notice that I retained the full cut. The illustration in LSDS showed a very slender style, but this full cut looks more childish, and suitable for a young child.
This is a two piece style with a sleeveless underdress, and a jacket to match. One outstanding feature is the little running stitch used to outline some of the jacket seams, and the hem. The jacket also features matching covered buttons!