I bought this shirt in a vintage store this week and I've tried everything I can think of to identify the brand, but to no avail. From the care label, I suspect it may be a Dutch brand. The material is synthetic, but the buttons are mother of pearl. The fabric is very lightweight, but heavily textured and is really springy/stretchy with a metallic sheen to it (a bit like beaten copper).
If any of you keen eyed fashion experts could help me ID the brand/maker, I would be really grateful.