Category:Audio equipments in the National polytechnic museum - Sofia, Bulgaria

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Radio equipment in the National polytechnic museum - Sofia, Bulgaria‎ (5 F)

Media in category "Audio equipments in the National polytechnic museum - Sofia, Bulgaria"

The following 3 files are in this category, out of 3 total.

ATG 7952 - NPTM Photothon 01.jpg 6,016 × 4,016; 14.35 MB
ATG 7952 - NPTM Photothon 08.jpg 6,016 × 4,016; 14.53 MB
NPTM photothon - pocket gramophone Mikifon - 1930s.jpg 3,264 × 2,448; 2.61 MB

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