RLB (Air Raid Protection League) was an official, national organization tasked with all aspects of civil air raid defence training. The RLB worked closely with the Luftwaffe and other civil defence services.

These brass RLB plaques would be attached to members homes for quick identification in the event of their assistance being needed. To the centre of the plaque we have the large, first pattern RLB emblem, with stylized “RLB” and small swastika.

The script of the outer ring “Mitglied des Reichsluftscutzbundes”. (Members of the Reich Air Protection League) below that, it mentions “Landesgr. Bayern”, referring to the regional group in Bavaria.
This impressive plaque does have a small minor split at the bottom edge, but fortunately it doesn’t stand out.