![A radio for the American office of Strategic Services (OSS), from the Second World War Radio, model SSTR-1-D, made up of the components SSR-I-G, SST-I-E, and SSP-I-D, as well as a voltmeter. A radio for the American office of Strategic Services (OSS), from the Second World War Radio, model SSTR-1-D, made up of the components SSR-I-G, SST-I-E, and SSP-I-D, as well as a voltmeter.](https://c8.alamy.com/comp/T3CR21/a-radio-for-the-american-office-of-strategic-services-oss-from-the-second-world-war-radio-model-sstr-1-d-made-up-of-the-components-ssr-i-g-sst-i-e-and-ssp-i-d-as-well-as-a-voltmeter-completely-preserved-with-patch-cords-and-headphones-it-comes-with-the-civilian-suitcase-for-a-secret-agent-and-the-very-rare-regulation-green-fiberglass-military-suitcase-paint-damaged-with-handle-and-latches-standard-radio-for-oss-agents-during-the-second-world-war-made-by-finch-telecommunications-passaic-new-york-the-office-of-strategic-services-was-the-intelligence-branch-editorial-use-only-T3CR21.jpg)
A radio for the American office of Strategic Services (OSS), from the Second World War Radio, model SSTR-1-D, made up of the components SSR-I-G, SST-I-E, and SSP-I-D, as well as a voltmeter.
![A radio for the American office of Strategic Services (OSS), from the Second World War Radio, model SSTR-1-D, made up of the components SSR-I-G, SST-I-E, and SSP-I-D, as well as a voltmeter. A radio for the American office of Strategic Services (OSS), from the Second World War Radio, model SSTR-1-D, made up of the components SSR-I-G, SST-I-E, and SSP-I-D, as well as a voltmeter.](https://l450v.alamy.com/450v/t3cr21/a-radio-for-the-american-office-of-strategic-services-oss-from-the-second-world-war-radio-model-sstr-1-d-made-up-of-the-components-ssr-i-g-sst-i-e-and-ssp-i-d-as-well-as-a-voltmeter-completely-preserved-with-patch-cords-and-headphones-it-comes-with-the-civilian-suitcase-for-a-secret-agent-and-the-very-rare-regulation-green-fiberglass-military-suitcase-paint-damaged-with-handle-and-latches-standard-radio-for-oss-agents-during-the-second-world-war-made-by-finch-telecommunications-passaic-new-york-the-office-of-strategic-services-was-the-intelligence-branch-editorial-use-only-t3cr21.jpg)
A radio for the American office of Strategic Services (OSS), from the Second World War Radio, model SSTR-1-D, made up of the components SSR-I-G, SST-I-E, and SSP-I-D, as well as a voltmeter.
![A radio for the American office of Strategic Services (OSS), from the Second World War Radio, model SSTR-1-D, made up of the components SSR-I-G, SST-I-E, and SSP-I-D, as well as a voltmeter. A radio for the American office of Strategic Services (OSS), from the Second World War Radio, model SSTR-1-D, made up of the components SSR-I-G, SST-I-E, and SSP-I-D, as well as a voltmeter.](https://c8.alamy.com/comp/T3CR3F/a-radio-for-the-american-office-of-strategic-services-oss-from-the-second-world-war-radio-model-sstr-1-d-made-up-of-the-components-ssr-i-g-sst-i-e-and-ssp-i-d-as-well-as-a-voltmeter-completely-preserved-with-patch-cords-and-headphones-it-comes-with-the-civilian-suitcase-for-a-secret-agent-and-the-very-rare-regulation-green-fiberglass-military-suitcase-paint-damaged-with-handle-and-latches-standard-radio-for-oss-agents-during-the-second-world-war-made-by-finch-telecommunications-passaic-new-york-the-office-of-strategic-services-was-the-intelligence-branch-editorial-use-only-T3CR3F.jpg)
A radio for the American office of Strategic Services (OSS), from the Second World War Radio, model SSTR-1-D, made up of the components SSR-I-G, SST-I-E, and SSP-I-D, as well as a voltmeter.
![Exploratorium on Twitter: "1. OSS World War II Agent Radio 2. C.I.A. Agent Radio from the Vietnam War #sendingsignals #morsecode https://t.co/qQ5Lp6mWoz" / Twitter Exploratorium on Twitter: "1. OSS World War II Agent Radio 2. C.I.A. Agent Radio from the Vietnam War #sendingsignals #morsecode https://t.co/qQ5Lp6mWoz" / Twitter](https://pbs.twimg.com/media/C3tSTgVVMAEJE0P.jpg:large)
Exploratorium on Twitter: "1. OSS World War II Agent Radio 2. C.I.A. Agent Radio from the Vietnam War #sendingsignals #morsecode https://t.co/qQ5Lp6mWoz" / Twitter
![A radio for the American office of Strategic Services (OSS), from the Second World War Radio, model SSTR-1-D, made up of the components SSR-I-G, SST-I-E, and SSP-I-D, as well as a voltmeter. A radio for the American office of Strategic Services (OSS), from the Second World War Radio, model SSTR-1-D, made up of the components SSR-I-G, SST-I-E, and SSP-I-D, as well as a voltmeter.](https://c8.alamy.com/comp/T3CR2G/a-radio-for-the-american-office-of-strategic-services-oss-from-the-second-world-war-radio-model-sstr-1-d-made-up-of-the-components-ssr-i-g-sst-i-e-and-ssp-i-d-as-well-as-a-voltmeter-completely-preserved-with-patch-cords-and-headphones-it-comes-with-the-civilian-suitcase-for-a-secret-agent-and-the-very-rare-regulation-green-fiberglass-military-suitcase-paint-damaged-with-handle-and-latches-standard-radio-for-oss-agents-during-the-second-world-war-made-by-finch-telecommunications-passaic-new-york-the-office-of-strategic-services-was-the-intelligence-branch-editorial-use-only-T3CR2G.jpg)