1973 Washington Quarter Broadstruck NGC MS 66 NGC# 4911913-012
A Broadstrike error occurs when a coin is struck without a collar, which is the retaining ring that establishes the final diameter of a newly struck coin. With no collar to constrain the planchet, the coin will expand beyond the boundary of a normal coin, sometimes drastically so.
In order to qualify as a Broadstrike, the coin’s full design must be present on both faces.
