No backdrop availableKoffie Hag Spaart Hart en Zenuwen1931DocumentaryFebruary 7, 1931 · NetherlandsSave to watchlistMark as seenShareDetailsStatusReleasedRelease dateFebruary 7, 1931Original languageDutchSpoken languagesDutchCountriesNetherlandsProductionGeneral Film CorporationBudgetNot recordedRevenueNot recorded