Vicente-Juan Ballester Olmos
July 4, 1947
Frank Ryman Photo
Lake City, Seattle, Washington  USA
BB Explanation: Balloon
FOTOCAT is an in-progress project from the Anomaly Foundation, managed by Vicente-Juan Ballester Olmos, with the purpose to create a catalog of world-wide UFO photo events. http://fotocat.blogspot.com/

References:
PBB Documents, http://www.nicap.org/ryman470704dir.htm
The New York Times, July 13, 1947
K. Arnold and R. Palmer, The Coming of the Saucers, 1952, p 181
Richard Hall, The UFO Evidence, NICAP, 1964, p 87
Report, Ted Bloecher (Report on the UFO Wave of 1947), 1967, pp IV-3 and 4, plate behind IV-2, and Section V
Weird Unsolved Mysteries, Fall 1947, p 4, quoting Philadelphia Inquirer, Jul 6, 1947, p 3
http://www.historylink.org/_output.CFM?file_ID=2067 quoting the Seattle Post-Intelligencer, July 5, 1947
G. Heard, Is Another World Watching?, Harper, 1951, plate
Not consulted: Ruppelt, The Report on Unidentified Flying Objects, p 32.    

We (the http://www.anomalia.org/ are developing FOTOCAT, a world-wide catalog of UFO and IFO photographic cases. Managed by Vicente-Juan Ballester Olmos and owned by Fundación Anomalía, a bilingual News report appears in the fotocat link above.