Vintage yellow floral maxi dress Size 10 AUS 8 USA Aerosc

This is a stunning yellow floral dress. I would say it is circa 1960s to 70s.  The Tag is quite faded, so I am unsure of the exact size  or Make.  The fabric is posssibly made from a polyester. It has two layers, solid yellow lining and the top layer is see through with yellow background and orange flowers. There is no stretch in the fabric. It has a zip down the back, adjustable tie straps for the sholder. The dress iis in fantastic condition.  Please refer to the photographs and the dimensions.

Dimensions lying flat

under arm to under arm: 42 cm w / 16 1/2 inch

top of dress  to hem 128 cm L / 50 1/2 inch

waist: 36 cm w / 14 inch