A.R.P. Air Raid Precautions Enamelled Members Pin.
A.R.P., Air Raid Precaution, members, pin. Dull silver coated Kings Crown, with red enamel in it (looks like small chip right side of the red) over shield with A.R.P. on blue enamel. Button hole fastener. 3/4" high by 1/2" wide. Shows slight wear.