From April to July 1944 , some 173 Panzer III were converted into StuG III Ausf .
Approximately 10,000 StuG IIIs of various types were produced from 1940 to 1945 by Alkett ( ~ 7,500 ) and from 1943 to 1945 by MIAG ( 2,586 ) .
From April to July 1944 , some 173 Panzer III were converted into StuG IIIs     .
Approximately 10,000 StuG IIIs of various types were produced from 1940 to 1945 by Alkett ( ~ 7,500 ) and from 1943 to 1945 by MIAG ( 2,586 ) .