history, victorian, politics, general election, watching the result come through on the telegraph, sketch at a london club, vintage illustration 1880s - 電報機 幅插畫檔、美工圖案、卡通及圖標
peter cooper: american industrialist, inventor,philanthropist and politician... (xxxl) - 電報機 幅插畫檔、美工圖案、卡通及圖標美國, 歷史, 白人
landscape engraving showcasing the remote optical telegraph outpost of dra-el-kesdir atop an arid ridge - 電報機 幅插畫檔、美工圖案、卡通及圖標
philadelphia centennial festival street scene, 1876, illustrated london news - 電報機 幅插畫檔、美工圖案、卡通及圖標費城 - 賓夕凡尼亞州
criminal alarmed to hear the police are using the electric telegaph, victorian humour, cartoon by john leech - 電報機 幅插畫檔、美工圖案、卡通及圖標報紙
first electrochemical telegraph (1809), by soemmering (1755-1830), published in 1882 - 電報機 幅插畫檔、美工圖案、卡通及圖標
history, science, military heliograph is a wireless solar telegraph system that communicates over long distances using flashes of sunlight reflected off a mirror, vintage illustration 19th century - 電報機 幅插畫檔、美工圖案、卡通及圖標
science, sound, preece's experiments, a series of pioneering trials in early wireless telegraphy conducted by welsh electrical engineer sir william henry preece in the late 19th century, victorian, vintage illustration 19th century - 電報機 幅插畫檔、美工圖案、卡通及圖標
ship speed control command ,engine order telegraph, eot or chadburn device - 電報機 幅插畫檔、美工圖案、卡通及圖標速度, 雕刻圖像, 橋 - 建築物
antique black and white photograph: field telegraph station, philippines - 電報機 幅插畫檔、美工圖案、卡通及圖標印洗照片, 復古風格
signallers of british indian army using a heliograph to communicate india, british empire, victorian, vintage photograph, 1890s, 19th century - 電報機 幅插畫檔、美工圖案、卡通及圖標
new inventions compared to the old versions at the chicago world's fair - 19th century - 電報機 幅插畫檔、美工圖案、卡通及圖標美國, 驛馬車, 雕刻圖像
