NGC Cert # 2839276004
 
Only 1 in this grade at NGC and 4 in higher grades
 
There were a lot minted this year, but then melted down, leaving this the most scarce date of this series of 1960s-1980's gold ducats 
 
Surviving mintage of just 5,844 making this among the scarcest date in this series (apart from the 1960, with 3,605, and, if you count the 1975 "medal strike" ducats with only 2,000 struck) Of 37,844 pieces struck, 32,000 were melted