Illustrated history of the United States mint (1888)
“ The Mint, on Chestnut street near Broad, is open to the public daily, excepting Sundays and holidays, from 9 to 12 A. M. Visitors are met by the courteous ushers, who attend them through [21] the various departments. It is estimated that over forty thousand persons have visited the institution in the course of a single year. Owing to the immense amount of the precious metals which is always in course of transition, and the watchful care necessary to a correct transaction of business, the public are necessarily excluded from some of the departments. ”
