De Haagsche Paardendagen CreatorTheo BosDate of creation09-06-1990Collection1975-2001: Dutch History Photo Commissions
Regionale politiehondenwedstrijd CreatorTheo BosDate of creation09-09-1990Collection1975-2001: Dutch History Photo Commissions
De derde Nationale Hengeldag CreatorTheo BosDate of creation26-05-1990Collection1975-2001: Dutch History Photo Commissions
De vierde Triathlon Strijen CreatorTheo BosDate of creation07-06-1990Collection1975-2001: Dutch History Photo Commissions