| Conflict | WW II (1939-45) |
|---|---|
| Theme | Militaria |
| Original/Reproduction | Original |
| Material | Cotton |
| Region of Origin | United States |
| Country of Origin | United States |
Check the listing for details. Officer Candidate School Green Back Patch WWII Original OCS. Made in United States. Listed at 4.00 USD. The History: The OCS insignia was approved on June 4, 1941. When it was approved it was believed that just under 3600 officer candidates would wear it at 13 schools durign each quarter through 1942.