1981 (P) Lincoln Memorial Cent - CU-1C-1981-17 Cud

Description

CU-1C-1981-17 is a cud on the 1981 Lincoln Memorial cent. At this depth, the census begins to function not merely as a collector attribution reference but as a statistical sample of die mortality patterns at a major coining facility. The distribution of breaks around the rim — whether clustered near particular design elements or spread evenly around the circumference — can reveal mechanical tendencies in the presses or die installation procedures that predispose certain rim areas to earlier fracture. CU-1C-1981-17 adds one more data point to this distribution, its break position confirmed as unique within the census. The coin was struck from the traditional 95% copper alloy at the Philadelphia Mint during the last complete year before mid-1982's composition change replaced copper with copper-plated zinc. All 1981 Philadelphia cents weigh 3.1 grams and carry no mint mark. Attribution by Cuds on Coins.

Cross References

• CU-1C-1981-17

External References