This is a gorgeous vintage dress from Trelise Cooper - it is the older style Cooper By Trelise label.  Size tag removed, please check measurements.
 
Bust is: 90cm
Length is: 104cm
Fabric: 100% cotton
Style: Dressica Rabbit ~ Indian Summer
 
A deep orange, the first two pics show it a little darker than it is, the third picture is accurate.
Lightweight layers.
There is a small dark mark on one of the panels - see pic, otherwise in excellent condition