Gear's illustrated catalogue of wood and iron working machinery (1872)
A.S. Gear, Gear, A. S · Boston : Printed at A.S. Gear's printing office, 62 Sudbury Street · leaf 174
matic Swell will bebrought into use. more sustaining power, and real substance and volume, in tones ofthe best quality, in which the vibration is perfect. Comparison of the Mason & HamHn Double Reed Organs withthose of inferior make, which must necessarily be provided withsafety-valves to… … Style No. 73. Length, 4 ft. i in. Height, i ft. 10 in. Depth, 2 ft. Weight, 210 lbs. of these instruments is derived largely from their exclusive employ-ment of several patented inventions, prominent among which are theImproved Vox Humana, Automatic Swell, and Euphone. Thisvarying quality of tone,…
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