TO&E drawing, Japanese regimental gun company of Type A infantry regiment (1929)

 

This organization was introduced for the new regimental heavy weapons: Type 11 37 mm infantry gun and  Type 11 70 mm infantry mortar, officially adopted in the 11th year of the Emperor Taishō's reign (= 1922).

Note, this is wartime organization only. In peacetime Japanese infantry regiment had only 1 heavy  weapons platoon (1 gun and 1 mortar) in the regimental machine-gun company.

Type 11 37 mm infantry gun 

Type 11 70 mm infantry mortar