This is a 2-meter J-pole antenna for the 145.585MHz audio retransmission of NASA TV. Probably the best VHF antenna, it was built by American Legion Post 380. They constructed and sold many of these in past years, but unfortunately no more. Not only are the Legion J-pole antennae effective radiators, but the SWR is virtually 1.0 with no reflections. Recently, this antenna was raised from 25 feet to 40 feet AGL.
Anyone know where to get the plans they used for this antenna?