Wiki information Deperdussin:

Société Pour L'Aviation et ses Dérivés
Aircraft manufacturer, Literature Subject, Employer, Business Operation, Organization

SPAD was a French aircraft manufacturer active between 1911 and 1921. Its SPAD S.XIII biplane was the most popular French fighter airplane in the First World War.

Deperdussin 1910 monoplane

The 1910 Deperdussin monoplane was the first aircraft to be built in significant quantities by Aéroplanes Deperdussin. The type was produced in a number of variants which were flown successfully in air races and gained several records during 1911,...