Lieutenant colonel Abraham Johannes Maas posing for the camera, here still as a captain. He was the founder of the Dutch anti aircraft artillery, the ground based air defence.
NIMH
between 1920 and 1934 <div style="display: none;">date QS:P,+1950-00-00T00:00:00Z/7,P1319,+1920-00-00T00:00:00Z/9,P1326,+1934-00-00T00:00:00Z/9</div>
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