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Title: Efescaphone crystal radio set, about 1924 [Go to resource]
Description: Crystal set, ('Efescaphone' model no. 3), c. 1924 License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: broadcast receivers
crystal setsTemporal: 1921-1930 Source: Science Museum Creator: Falk Stadelmann & Co. Ltd Identifier: 1973-234 Go to resource More Like this...
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