PugJesus@lemmy.worldM to HistoryPorn@lemmy.worldEnglish · 11 months agoListening device for detecting aircraft, USA, 1921lemmy.worldimagemessage-square7fedilinkarrow-up1137arrow-down11
arrow-up1136arrow-down1imageListening device for detecting aircraft, USA, 1921lemmy.worldPugJesus@lemmy.worldM to HistoryPorn@lemmy.worldEnglish · 11 months agomessage-square7fedilink
TESTING