This is a working collectors item. Military genset, UGP-12 POWER UNIT, 125 watt, 115 volt, single phase, gasoline power, generator. Runs Extremely rare to find a runner like this. I believe this unit was made by Jacobson but will not guarantee that.The Jacobson made ones had only 2000 made and supposedly used by Special Forces and Green Berets in Vietnam with the ANGRC -109 radio set.