1226

CHARLES P. STEINMETZ D.S.

Currency:USD Category:Everything Else / Other Start Price:NA Estimated At:50.00 - 75.00 USD
CHARLES P. STEINMETZ D.S.
<b>1226. CHARLES P. STEINMETZ </b>(1865 - 1923) American electrical engineer who the law of hysteresis and the theory of alternating current. Partly-printed D.S. "<i>Charles P.</i><i>Steinmetz</i>" 1p. oblong 12mo., Schenectady, July 1, 1904, a check drawn on the Schenectady Trust Company ordering payment of $11.50 to H. L. Shannon. Cancellation punches lightly affect signature, else very good.<b> $50-75</b>