hanging on every word

19101940 1930s adult adults and bw black bygone caucasian communicating communication concentration connection control day daylight daytime emergency equipment era fashioned females group headphones historical horizontal investigation listen listening male males man medium men monitoring nostalgia nostalgic occupation of old oldfashioned ov2014 people protection radio responsibility retro safety scrutinizing scrutiny security service sitting standing table tapping technology tent together togetherness transmitter trust vintage visuals white wire woman women