AEG Nitralampen-Plakatwettbewerb 1916. 19 drafts from the competition were issued as a set of 19 postcards. This is the rear side of of a postcard from the set.
<span lang="en">Anonymous</span><span style="display:none">Unknown author</span>
<a rel="nofollow" class="external free" href="https://www.ebay.de/itm/POSTCARD-GERMAN-AEG-NITRALAMPE-ARTIST-SIGNED-VON-SYDOW/142467147080">https://www.ebay.de/itm/POSTCARD-GERMAN-AEG-NITRALAMPE-ARTIST-SIGNED-VON-SYDOW/142467147080</a>