Thanks for this. My partner has put it through some software and I can now make out the shape of the leaf. I too was thinking WW1 but it is said to be a photo of my grandmother who was born in Liverpool in 1913. She died in 1947 and the only photos I've seen are of her as an adult. It does look like her so this would date the photo from the 1920's. Now that I know it's a guide uniform I think I'll do as you suggest can contact them to see if they can give any idea of the date. Thanks again.
Regards
Julie