Lot
1687 
(Telegraph) House's Printing Telegraph, illustrated ad design showing Telegraph Machine, franked with 1852, 3¢ dull red tied by "Washington, D.C., Jul 2" cds; minor cover edge tone spots, Very Fine. Scott No. 11 Estimate $300 - 400.
House's Type Printing Telegraph of 1849 was Royal Earl House's second and much improved type-printing instrument and was widely used on lines on America's east coast from 1850. House's telegraph devices, which also had piano style keyboards, were very popular in France, where there were likely many more piano and harpsichord players than telegraphers.