{"version":"1.0","type":"photo","width":1024,"height":585,"title":"airmail flight cover: Boeing 307 Stratoliner, first pressure-cabin test","url":"https:\/\/static.sfomuseum.org\/media\/152\/782\/039\/5\/1527820395_dG7i4uRt5sJqTxAdBrxPkAKJubjduYlr_b.jpg","author_name":"SFO Museum","author_url":"https:\/\/collection.sfomuseum.org\/objects\/1511923811\/","provider_name":"SFO Museum","provider_url":"https:\/\/collection.sfomuseum.org\/"}