A blue enamel sterling silver ring featuring the emblem of National Air Raid Protection League (RLB), founded in 1933 to train men and women in civil defense against air raids. Stamped ‘835’ for metal content on the interior. Regrettably, the enamel bears a loss of about 30%, otherwise very good and most desirable. This exact ring appears on p. 267 in ‘German & Spanish Military Rings: A Historical Perspective’ by Stephen J. Shaw (Lancaster: Kollektor Press, 2021), and is accompanied by a copy of the book.