Catalogue of O.D. Pierce & Co. manufacturers of and dealers in electrical supplies ... (1893)
O. D. Pierce & Co. · O. D. Pierce & Co. · leaf 46
op , JSwTontf Volts to8incfa mi efficiently N Lif u. ..,. i • wm;- kindHofli^tmaHnn,. W, - an t, „,v ^ t ..U tlos M^ tASj^^ efficiency, doing more work on tl , (, ^ W . finely finished in enamel wit (ver ll,it,h Jh ■ »r, . . . mm M ft Blades, ; ; ; ; *» gg , . 4l x, Pirection8 for use of Porter… … THE LUDW1G MECHANICAL TELEGRAPH INSTRUMENT. A mechanical set for learners, requiring no battery whatever. It has a full sizekey, a complete set of adjustments and provided with special resonators that ^ivethe correct sounderclick to the instrument. Made in bronzed iron finish; also inbrass, nickel…
