Visual signaling / prepared under direction of the Chief of Infantry - USA Voorschrift, Training Regulations, No. 162-5 Pre-induction vocational training in electrical signal communication Signal communication for all arms and services - USA Voorschrift, Training Regulations, No. 160-5 training regulations Cavalry : drill and combat signals / prep. under direction of the Chief of Cavalry - United Staten War Department Training Regulations TR 425-20 Signal corps : Wire axis installation and maintenance within the division - USA Voorschrift, Training Regulations, No. 165-5 Signal Corps : Training films - USA Voorschrift, Army Regulations, No. 105-260 Signal Corps Training Aids Catalog. - USA Voorschrift Signal Corps 695-1
