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Rudolf KOENIG (1832-1901) à PARIS
The item was sold for 390 €
Fees include commission and taxes.
Rudolf KOENIG (1832-1901) à PARIS
Rare Marloye differential sound level meter in wood and metal for determining the frequency of a given sound, the case bearing the manufacturer's stamp.
19th century
52 x 140 x 24 cm
Rare Marloye differential sound level meter in wood and metal for determining the frequency of a given sound, the case bearing the manufacturer's stamp.
19th century
52 x 140 x 24 cm