Disambiguation evidence for Harmon Trophy (to its pilots) via surface form

"Clifford B. Harmon’s international aeronautical trophies"

Triples (1)

Triples where some other subject referred to this entity as "Clifford B. Harmon’s international aeronautical trophies".

Harmon International Balloon Trophy → isPartOfSeries →
"Clifford B. Harmon’s international aeronautical trophies"
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