Morse key collection DL3HRT

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Germany Novoplex... Famous and scarce Novoplex bug - 1938/39	Germany Novoplex... Famous and scarce Novoplex bug - 1938/39	Germany Novoplex... DASD-logo on Novoplex bug	Germany Novoplex... Manufacturer information in Novoplex bug.
Germany Siemens ...	Germany Siemens ...	Germany Siemens ...	Germany Siemens ... Siemens & Halske - abt. 1900 - soundless key
Germany Siemens ... Siemens&Halske - soundless keys	Germany Telefunk... Telefunken ZTK129 - 1920s	Germany Telefunk...	Germany Telefunk...