During the second world war the Scout Association and the Girl Guides Association issued badges related to Civil Defence. Below is the badge and requirements for the issue of the Scout Association's "Civil Defence" shield proficiency badge. The badge featured a yellow shield with "BOY SCOUTS" in a green circle. A blue version of the same yellow shield was for the Sea Scouts.
The National Service badge was a red badge with the letters N and S and the King's crown emblem. Both woven and printed versions of the badges exist.
I am indebted to Karen Wiles for the main image and details.
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