55th Air Defense Artillery Unit Crest (Vigilantia) - Sold in Pairs Merchant Marine The colors orange and white

The colors orange and white are the colors of the Signal branch

Navy and Marine Corps who have performed an exceedingly heroic act

United States Coast Guard Miniature Port Security Insignia

"Assured Support

boat seamanship

55th Air Defense Artillery Unit Crest (Vigilantia) - Sold in Pairs Merchant Marine The colors orange and whiteUnited States Army 55th Air Defense Artillery Unit Crest (Vigilantia) Criteria: This is the unit crest or distinctive unit insignia for the 55th Air Defense Artillery. This was once a Coast Artillery Regiment (C. A. C.) Unit crests are worn on the Army's Dress Blue (ASU) uniform. Note: Sold in pairs (i. e., if you order a quantity of 1 you will receive two Unit Crests).