A brief sojourn into Anglican Waters and we find this example, a simple biretta similar to the ICKSP Biretta previously shown, save for its black watered silk outer. It belongs to the superior of the College of Our Lady of Hanworth, West London, to be worn on occasions of mourning, and feasts and Masses of the Blessed Virgin Mary during Lent and Advent.
Mother superior has just looked at us askance with the cautionary words that lying is a grievous sin. So ok, we made up the things about mourning and Lent. We were only speculating, but we’ve a run of OLH Birettas coming up and frankly it’s the best explanation we or any of the sisters can manage for this modest example (it was an early prototype).

