A repunched date (RPD) occurs when one or more digits of the date have been punched into the die in more than one location, showing the digits or parts of the digits as overlapping or even as totally separated images. In 1909 the US Mint began adding the date to the hub rather than to each die by way of a punch, eliminating the possibility for repunched dates.
1894/1894 S1 is the prized RPD of the series due to its pronounced repunch of all 4 digits, easily seen without magnification.
1894/1894 S1 PCGS MS66RD Finest Known ex. Heathgate