David Hall: The 1920-D is a rare coin in high grades and a very rare coin in mint state. In Gem condition, the 1920-D is not quite as rare as the 1921-D, 1918-D or 1917-D Reverse. Nonetheless, the issue, like all early (pre-1934) Denver mint Walkers is a tough coin to find in Gem condition.
The 1920-D is usually decently sruck. Luster can be satiny to somewhat frosty.