The last two Fokker T.IVa seaplane bombers, T-23 and T-24, were used for trials for some time and T-23 is seen here at the Fokker factory in North Amsterdam, shortly before it was shipped to the Netherlands East Indies. Flag deleted from rudder after Munich Crisis. Photo from: Nederlands Instituut voor Militaire Historie

Surabaya was the main naval base in the Netherlands East Indies, and in fact in the Dutch kingdom as a whole. Photo from: Jaap de Moor collection

'New aircraft-bomber for the navy.' The blunt tower of Ransdorp is seen in the background. Schellingwoude was a good seaplane harbour and Fokker seaplanes could easily get here from the old waterfront factory. Landplanes had to be moved to Schiphol by barge right through the Amsterdam canals until 1950. T-10 struck off charge at Surabaya, Java in 1940. Photo from: Amsterdam City Archives

Nice seaplane action. According to the caption provided by the source, the occasion was a fleet review off Batavia on 1 September 1932, although this caption belongs to another photo. Photo from: Leiden Photo University Libraries

A Fokker T.IV of the original series, with Lorraine-Dietrich engines and open crew positions, over the Madura Strait, off Java. The T.IV was intended mainly for anti-shipping missions, having an internal bomb bay for four 200-kg bombs; it was difficult to fit bomb doors in the hull of flying boats such as the Dutch navy's Dornier Wals. Photo from: Nederlands Instituut voor Militaire Historie

Slow but seaworthy, the T.IV floatplane reconnaissance bomber was quite popular in the Dutch Naval Air Service (MLD) in the East Indies, and the updated T.IVa model entered service in 1936. Photo from: Jaap de Moor collection