Disambiguation evidence for Airco DH.9A via surface form

"Airco DH.9A (in some roles)"

Triples (1)

Triples where some other subject referred to this entity as "Airco DH.9A (in some roles)".

Airco DH.6 → successor →
"Airco DH.9A (in some roles)"
↳ resolves to Airco DH.9A
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