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1B HQ. 2ND WING MILAN | | |-----------------|---------------------------| | | HQ. 4TH GROUP MALPENSA WING DEPOT SCHOOL | MALPENSA (GALLARATE) |-- 1ST SQUADRON | MALPENSA | |-- 4TH SQUADRON | MALPENSA | |-- 6TH SQUADRON MALPENSA BOMBARDMENT One Wing One Group One Wing Depot School Three Squadrons ITALIAN BOMBARDMENT SQUADRON ORGANIZATION PREPARED UNDER DIRECTION BRIG. GEN. WM. MITCHELL Lt. Clayton Bissell Jan.27,1922.