The 1976-D Lincoln cent is very common as the Mint struck over 4.2 billion examples. This issue can easily be pulled from circulation in circulated grades up to about MS64 condition. Examples in MS65 to MS66 are much more difficult to find but enough examples exist that one can be purchased very inexpensively. Examples in MS67 condition are very difficult to find and expect to pay a significant premium to buy one. Anything grading higher than MS67 is considered very scarce to rare.