The majority of Civil Defence area titles (both the oblong and arched versions) were made of old gold coloured thread on a dark blue or black wool/felt backing. There are also a few examples such as the below Birmingham are marking that have the old gold thread sewn onto a dark blue cotton twill material. The backing material is a black cotton and a merrow edge in black thread is also used on the badge's edge. A badge made in the same way can be found for Greenwich (I assume the same manufacturer was probably used).
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