I posted it several times before, but will post it again.
For smaller sizes in Vass, stick to the following chart and you will be fine.
If between sizes, take the smaller one.
UK6 = EU39,5
UK6.5 = EU40
UK7 = EU40,5
UK7.5 = EU41
UK8 = EU41,5
I just recently had the chance to meet Roberto Ugolini and get my hands on 20 pairs of his lovely shoes, but in my opinion those Main-d`or shoes exceed even master Ugolini's shoes in looks.
Thank you so much for sharing!