![mail, telephone, telephone with vertical mikrophone membrane, closed, wood engraving, Germany, later 19th century, telephone set, telephone sets, technics, telecommunications, telecommunication, telecom, communication, communications, transfer of ... mail, telephone, telephone with vertical mikrophone membrane, closed, wood engraving, Germany, later 19th century, telephone set, telephone sets, technics, telecommunications, telecommunication, telecom, communication, communications, transfer of ...](https://c8.alamy.com/comp/T10HAF/mail-telephone-telephone-with-vertical-mikrophone-membrane-closed-wood-engraving-germany-later-19th-century-telephone-set-telephone-sets-technics-telecommunications-telecommunication-telecom-communication-communications-transfer-of-information-mouthpiece-microphone-mouthpieces-microphones-receiver-receivers-earpiece-earpieces-box-boxes-acoustic-membrane-mail-post-telephone-phone-telephones-phones-historic-historical-artists-copyright-has-not-to-be-cleared-T10HAF.jpg)
mail, telephone, telephone with vertical mikrophone membrane, closed, wood engraving, Germany, later 19th century, telephone set, telephone sets, technics, telecommunications, telecommunication, telecom, communication, communications, transfer of ...
![A portable field radio "d" - Dorette with accessories Aluminium case with typical original beige finish. The radio with attached instructions, frequency scale and switches. Wehrmacht acceptance stamp and type plaque "KlFuSpr A portable field radio "d" - Dorette with accessories Aluminium case with typical original beige finish. The radio with attached instructions, frequency scale and switches. Wehrmacht acceptance stamp and type plaque "KlFuSpr](https://c8.alamy.com/comp/T8NDGP/a-portable-field-radio-d-dorette-with-accessories-aluminium-case-with-typical-original-beige-finish-the-radio-with-attached-instructions-frequency-scale-and-switches-wehrmacht-acceptance-stamp-and-type-plaque-klfuspr-d-with-no-o752044rqr-and-further-designations-dimensions-circa-205-x-13-x-7-cm-with-battery-box-case-as-before-inscribed-btrk-a-with-leather-strap-and-connecting-cable-larynx-microphone-with-switch-fub-headphones-and-folding-antenna-reprint-of-the-manual-and-service-regulations-d-10375-circa-15-pages-with-illustrations-not-checked-editorial-use-only-T8NDGP.jpg)