Tape Recorder Valdemar Poulsen's wire drum model of his Telegraphone. 1920.

RMID:HHG78D

Image details

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Image ID:

HHG78D

File size:

180 MB (3.7 MB Compressed download)

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Dimensions:

9151 x 6875 px | 77.5 x 58.2 cm | 30.5 x 22.9 inches | 300dpi

Date taken:

1920

Photographer:

More information:

This image could have imperfections as it’s either historical or reportage.

Tape Recorder Valdemar Poulsen's wire drum model of his Telegraphone. 1920.