File:Vintage Sony Model TR-1811 Transistor Radio, Broadcast
File:Vintage Sony Model TR-1811 Transistor Radio, Broadcast,All Transistor TR-1811 Radio Sony Corporation; Tokyo, build,ソニー製 〔型番TR-1811〕 AM 6石トランジスター ラジオ 1964年,Sony – Future Forms,All Transistor TR-1811 Radio Sony Corporation; Tokyo, build