Were they effective?Do photos exist of their use?
This is well:
The Japanese knew that the Christmas Eve raid was coming, and they filled the sky with antiaircraft fire as the Liberators made their bomb runs. Showing "intrepid determination and daring," 20 to 25 Zekes and Hamps made repeated passes at the bombers as Tafaro and the other pilots doggedly tried to stay in formation. To make things even more difficult, the Japanese had introduced a new tactic of deploying phosphorus bombs from cables to improve accuracy. An American combat narrative states, "As the Japanese fighters came in with machine guns firing at our planes, phosphorus bombs were thrown toward the formation. No actual damage resulted from these bombs, but they were effective from a demoralizing standpoint. They burst close to our planes, with flying fragments of burning phosphorous seemingly surrounding the entire plane."
Flight Journal:Mission to Balikpapan,David Lewis,2003.