Tonkin Gulf Yacht Club Patch- Vietnam War Vet - Medium - Veteran Owned Business High Quality Embroidered Tonkin Gulf Yacht Club Patch - Vietnam War Veteran Patch 4" round Tonkin Gulf Yacht Club Patch with Yellow background with 3 Red Stripes (The flag of South Vietnam) and a Vietnamese Junk make this a stand-out patch. Not the smaller 3" but 4" patch. Very nice patch, Iron On Backing Great Detail and stitching - Great for a jacket or vest Great Gift Idea for a Tonkin Gulf Vietnam Veteran Veteran Owned and Operated Business - Retired Marine