3 piece suit source?

[Mikilt]

Thanks Sydnie,
I already have nice, round cuts that avoid the button hole. I am struggling with folding down the edges such that the smoothness of the curve is maintained. Folding and ironing an inch at a time, then pinning so I can check for accuracy has gotten me close, but as you said, I am not going to get it right the first time.

I want to invent a tiny iron for detailed jobs like this.