Memorial for the massive deportations mounted into the facade of the Paviljoensgracht 27A
Source: https://nl.wikipedia.org/wiki/Jodenbuurt (Den Haag)

DEPORTATIONS OF THE THE HAGUE JEWS

The deportations began in August 1942. At first the ‘Academie voor Beeldende Kunsten’ on the Prinsessegracht was the gathering place for Jews of Den Haag who were to be deported. Shortly afterwards the ‘Joodsch Tehuis’ on the Paviljoensgracht 27a – before the Second World War a Jewish community centre – became the starting point for the deportations. There is a plaque on the façade of that building to commemorate this atrocity. The massive deportations continued to September 30th 1943 when the great majority had been deported. Jews who still lived in the city were either married to a non-Jew or in hiding.