Dutch 'Glenn Martins' over Malaya with, interestingly, one of only a few RAAF Wirraways sent there. The bombers are Martin 166, or 139 WH3, models with a single long 'glass house' canopy. M-556 was captured by the Japanese at Singapore in February 1942. On the right is M-551.
This photo was added on 9 August 2022, and has since been viewed 567 times.