<em>Swissair: Stockholm, Drottningholm, Herkulesfontänen, 1946-1948 (LBS_SR01-10155, <a href="http://doi.org/10.3932/ethz-a-000497853">http://doi.org/10.3932/ethz-a-000497853</a>)
<em>Swissair: Stockholm, Drottningholm, Herkulesfontänen, 1946-1948 (LBS_SR01-10155, <a href="http://doi.org/10.3932/ethz-a-000497853">http://doi.org/10.3932/ethz-a-000497853</a>)
