United States, 1983 AD., Denver mint, one cent, KM 201b.

United States, Denver mint, 1983 AD., "Lincoln Memorial Penny",
1 Cent ("Penny") (19 mm / 2,54 g), (copper plated zinc, core: 99.2% zinc , 0.8% copper, with a plating of pure copper; total content .975 zinc, .025 copper), mintage: 6,467,199,428 ,
Obv.: IN GOD WE TRUST / LIBERTY / 1983 / D , bust of Abraham Lincoln right (designed by Victor David Brenner), mintmark: "D" (for Denver, CO) below date.
Rev.: UNITED STATES oF AMERICA / E PLURIBUS / UNUM / ONE CENT , the Lincoln Memorial with the sculpture of the sitting Lincoln inside the middle.
KM 201b .

The Lincoln Penny was first issued in 1909 to commemorate Abraham Lincoln's 100th birthday. Initially the alloy of the Lincoln cent followed that established for this denomination with the Indian Head design in 1864, 95% copper and 5% tin and zinc. This was changed first in 1943. During the early 1970s, the price of copper rose to a point where the so called "penny" almost contained one cent's worth of copper. This led the Mint to test alternate metals. In mid-1982, the coin's composition changed again to copper-plated zinc. The Lincoln Memorial design commemorates Lincoln's sesquicentennial (150th anniversary of his birth in 1959).