The USS Jamestown,
Commissioned in 1844, the USS Jamestown was a US Navy sloop that certainly saw an interesting career on her world travels which included Africa, South American, Northern Europe, the Mediterranean, Alaska, Tahiti, Fiji, and the Hawaiian Islands. Originally, she was one of the first navy ships tasked with interdicting illegal slave traders from Africa. Later she was tasked with the humanitarian mission of supplying food to Ireland during the Irish Potato Famine. During the Civil War she served as a blockage runner and was responsible for the capture of 5 Confederate supply ships. After the Civil War she was sent to the Pacific as a supply vessel, suppling US Navy ports as far north as Sitka, Alaska and patrolling as far west as Tahiti and Fiji. The USS Jamestown ended her career as a training vessel and later a Marine hospital. She was destroyed by fire in 1913.
China Lake “System 23” M60 Backpack
Long before the Ironman ammo backpack for the M240 and the iconic (but fictional) Minigun setup used in the movie Predator, there was a system for the M60. I’m not exactly sure why the M60 in the first photo looks almost neutered; can’t shoulder it and it has no iron sights. Second photo shows the System 23 with a complete M60.
These were intended for use in Vietnam but I don’t know if they were ever deployed. I wouldn’t be surprised if they did with special operations groups, Vietnam like any war is a big testing ground for new weapon systems.
The m60’s that were cut down like such in the photo were for navy seals. I do believe this system was used and tested by a few navy seal teams in Vietnam…. Also to add The “china lake”, was also a multi shot 40mm style(I think it may have been in 37mm?) grenade launcher much like the m79 but featured a pump action. it was designed for MACV-SOG, seals and Force Recon. and was used a few times by such teams.
"China Lake" in op most likely refers to Naval Air Weapons Station China Lake where this back pack M60 weapons system was developed, as well as the China Lake Model Grenade Launcher. I don’t think that "China Lake" refers to just one piece of equipment. But there are probably CL models of various systems since this is where the USN develops many weapons, particularly for the SEALs.