Once again...it doesn't get any finer than these.
Here are truly superb examples of war era and post-war examples of the Imperial air ship badge. Rare and undervalued.
Study the marks on the C E Junker versions. The half crescent moon, Imperial crown to the right, and the silver content in parts-per-thousand. These marks, including their placement in relation to one another, were specified and mandated by Imperial decree in 1886.
The last example was produced by Paul Meybauer. Study its fit and finish - not quite up to the usual excellent standards of Meybauer. The reverse is "economy" finished and marked with a variant of the Meybauer logo. Notice the vertical finishing grooves and dimpled texture to the reverse surfaces. Finally, check out that 1920s steel pin.
The Meybauer badge was originally gilt, but most of it is gone.
Note the different pin types, plus subtle differences in the wreath details. Details are sharp, with high relief; These are important specifics needed to detect the many fakes on the market - some of which are highly deceptive.
Keep an eye out for these badges. At $2000 or less they represent one of the very best values available in the militaria market - if you can find one that is genuine.