Postal was founded in the 1880s by John William Mackay, an entrepreneur who had made a fortune in silver mining in the Comstock Lode.Mackay's original purpose was to provide a domestic wire network to directly link with the Atlantic Cable.The company was initially called The Pacific Postal Telegraph Cable Co.[2] Under president Albert Brown Chandler, the Postal network was able to achieve sufficient economy of scale to compete with Western Union, occasionally controlling as much as 20% of the business.It had grown so large that management had to move out of the company's New York City headquarters at 187 Broadway to accommodate more operations staff.[3] Chandler oversaw the design and construction of the Postal Telegraph Company Building, a new headquarters at 253 Broadway and Murray Street.