This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Sluice Gubeng Surabaya NederlandschIndisch Publiciteitsbureau Batavia Soerabaja KITLV . id Kartu pos pintu air Gubeng Surabaya Koleksi KITLV en Picture postcard of the sluice of Gubeng Surabaya Indonesia nl Prentbriefkaart van de sluis van Gubeng Goebeng bij Surabaya Soerbaja Indonesi Institution Universiteitsbibliotheek Leiden