Description2nd-Tank-Corps-Branch-Insig.png	US Army Tank Corps Branch Insignia
Date	7 May 1918
Source	United States Army Institute of Heraldry
Author	US Army
Permission (Reusing this file)	Public domainPublic domainfalsefalse This image shows a flag, a coat of arms, a seal or some other official insignia produced by the United States Army Institute of Heraldry. It is in the public domain but its use is restricted by Title 18, United States Code, Section 704 [1] and the Code of Federal Regulations (32 CFR, Part 507) [2], [3]. Permission to use these images in the USA for most commercial purposes must be obtained from The Institute of Heraldry prior to their use. Deutsch ∙ English ∙ فارسی ∙ 日本語 ∙ русский ∙ +/− - US Army Institute Of Heraldry

Description: Paragraph 36, Change 1 to War Department Special Regulations No. 42, dated 1917-12-29, stated that "the insignia on the collar of the coat for Tank Service would be a conventionalized tank, 1 inch high, with the number of the regiment attached to the bottom". The approved design was a front view of a French tank. No, it wasn't. It was a front view of a fictional tank, taken from an artist's impression in 1917 - the Land Cruiser designed by the Automatic Machine Company of Bridgeport, Connecticut. It's doubtful that the machine was built. Hengistmate (talk) 11:24, 28 August 2015 (UTC)

The insignia approved in 1917 was not well received and a new design was announced for the Tank Corps per Change 2 to Service Regulation 42, dated 1918-05-07. The new design showed the side view of a Mark VIII Tank* above two stylized dragons breathing fire over a wreath. War Department Circular 72, dated 1921-03-16, eliminated the insignia of the Tank Corps.

Paragraph 13b, AR 600-35 prescribed the collar insignia for Infantry (Tanks) as "The Infantry insignia with a circular raised center superimposed with the letter "T"."

In a letter dated 1922-03-21, The Adjutant General approved a new design for Infantry (Tanks). Change 2, AR 600-35, dated 1922-03-28, prescribed the insignia for Infantry (Tanks) to be "The Infantry insignia with tank superimposed. This insignia was rescinded by Change 2, AR 600-35, dated 1933-08-22.

Change 15, AR 600-35, dated 13 Mar 43, added the insignia for Tank Destroyer Forces. This change specified the design was a "75-mm gun, motor carriage M3, in gold color metal." The insignia was rescinded by Change 2, AR 600-35, dated 1944-11-28.

A new insignia for the Armored Forces was authorized by War Department Circular 56, dated 1942-02-25. This insignia was the side-view of the Mark VIII Tank used in World War I*. The insignia was continued in use until the Armor Branch was established in Feb 51. The new insignia was the result of the Army Reorganization Act of 1950 as announced in Army Bulletin No. 9. The Armored Forces and Cavalry were combined into a single branch called Armor. The Armored Forces insignia was no longer used; however, the Cavalry insignia was continued in use as a collar insignia for personnel assigned to Cavalry Units.

*The Mark VIII tank wasn't used during World War I. It wasn't ready in time. The tank shown on the badge referred to is a Mark V. Hengistmate (talk) 11:24, 28 August 2015 (UTC)