Things You'll Need
Instructions
Contact the person you got the insignia from initially. If you bought it from another collector, they should have information about its significance. Even if you bought it in a second-hand shop or military surplus store, the seller may be able to tell you where they got it from originally.
Note all the details of the insignia. Write a list of all the identifying aspects of the insignia, including colors, images, numbers, letters, and size.
Check out any catalogs or guidebooks to army insignias from your local library. Bring the list of physical details with you if you don't wish to transport the insignia itself. Compare descriptions of army insignias to the information you have about yours.
Look into other collector websites. Many websites offer pictures of army insignias and guides to identification.
If you're still having difficulty identifying your particular piece of insignia, take a high quality digital photo of it, and contact the webmaster of a collector's website to ask for assistance. Be sure to discuss whether they are usually compensated for their identifying experience before entering into a deal with them.
If you have a military historian or another serious military item collector in your town, take the insignia to them and ask for their advice. Most serious collectors will expect to be compensated for their services, so be sure to discuss that beforehand.