This collection comprises three embroidered patches used by the United States Marine Corps. The patches represent different Marine units, including one with the II Marine Amphibious Force emblem. One patch features a seahorse symbol, while another displays the designation "52" with a USMC inscription. These patches were worn by Marines to denote unit affiliation and identity. They date from the mid-20th century and illustrate the diverse insignia employed within the USMC during that period.