Never seen this Derhy pattern before, probably the only one online.

Labelled size M. René Derhy is a French brand, so please refer to the measurements for the best fit. Picture 4 is on a size 6/8 model for a loose fit.

Measurements (Flat):
* Pit to pit: 43 cm
* Waist: 40 cm
* Hips: Not applicable, as the skirt is loose-fitting from the waist down. The dress is generally a loose fit because of the straps, so the waist might be loose when wear, but it also depends on your size.

I would recommend it for a AU size 6/8 if you're after a fit similar to Pic 4. It could also fit up to a small size 12, although the silhouette will be more fitted, similar to Pic 2. This is only my recommendation, so please check the measurements carefully before purchasing.

Cotton material.

Condition:
Pretty good vintage condition. Some beading is loose, but no beads are missing. Fabric is in good condition overall.