The 1958-D Lincoln cent is the last wheat Lincoln cent struck at the Denver Mint. This year the Denver Mint did a much better job at producing nicer coins compared to the previous years. Therefore, the 1958-D tends to come in much better quality. In MS65 condition they are now abundant. In MS66 grade there are many examples available and many of them being high end for the grade. In MS67 condition they are also much easier to find and there are plenty out there for collectors to choose from.