Record matrix room, Berliner Gramophone Company, Montréal, Québec, 1910.
Record matrix room, Berliner Gramophone Company, Montréal, Québec, 1910. -- source link
#phonographs#gramophone#berliner#engineering#electrical engineering#history
Record matrix room, Berliner Gramophone Company, Montréal, Québec, 1910. -- source link