I found it while rummaging in a nearby secondhand shop and couldn't believe how low the price was (I cannot justify much clothes-buying at the moment!). It was an even nicer find when you consider that the jacket dates from the 1920s and it is in such good condition. I love the velour / velveteen fabric with its cheery red and blue graphics.
The same shop had a beautiful dress with printed swallows around the collar, which I think would be perfect for the shoppe. Fingers crossed it's still there when I next visit!