WW2 Home Front ARP Burton Montague

A WW2 Air Raid Precaution badge associated with Burton Montague (clothing retailers). A small (22mm dia) pin back badge constructed of brass with blue & white enamel.
This appears to be a rare badge as it is not illustrated within the guide book "Doing their Bit' Home Front Lapel Badges 1939-1945 by author Jon Mills.

Code: 51668