U.S. MERCHANT MARINE DECK OFFICER COLLAR DEVICE

Merchant Navy Badge

Marine Corps Collar Device: First Lieutenant

General Instructions for Commanding Officers of Naval Armed Guards on Merchant Ships - 1944

US MERCHANT MARINE SERVICE DRESS BLUE UNIFORM

U.S. MERCHANT MARINE DECK OFFICER COLLAR DEVICE

U.S. Naval Reserve Insignia – a collection of writing

Approved By The U.S. Institute Of Heraldry, USA Made, M-37 Hallmark, Official Issue, Navy Regulation Chapter 5, Section 2, Article 5201.3, Approved

Navy Collar Device: E4 Seabee - Black Metal Rank Pair

merchant marine service emblem – a collection of writing

Merchant Navy Badge

RANKS IN MERCHANT NAVY - Merchant Navy Decoded

US MERCHANT MARINE SUMMER KHAKI UNIFORM

A Brief List of Old, Obscure and Obsolete U.S. Navy Jobs - USNI News

MARINER'S UNIFORM – marine_observer

Warrant officer (United States) - Wikipedia