This is such a sweet little hat.
Made in the 1940s and labelled Frances Adams, it is made from lacquered raffia with a wired brim to help keep the shape and is trimmed with a charming little cluster of blue and cream fabric flowers and grosgrain bow in cornflower blue.
It isn't meant to fit fully on your head but is meant to tilt slightly and so will fit up to a 22.5" head. It will need to be secured with a hat elastic or hat pin.
The hat is in very good condition, the only minor point to note is there are a couple of small marks which are mostly lost within the folds of the raffia.