160; Until withdrawal in the early 70's, the Shrimpboats remained a major contributing force in battle for the Central Highlands. 160; LINKS. 160; 1st Aviation Brig. Fetters has just had replicas of our original unit patches embroidered. They are available through him for $12.00 each for the first one and $11.00 for every one after that. You can contact him at: email@example.com. to order. Tom Walker with his pet monkey, George. More photos and slide show. 160; ST LOUIS REUNION 2011:.