| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| 1928 penny no mint mark | 1.51 | 0.4 | 6385 | 33 |
| 1928 penny no mint mark worth | 0.38 | 0.9 | 7509 | 15 |
| 1948 penny no mint mark | 1.51 | 0.9 | 423 | 67 |
| 1948 penny no mint mark worth | 1.56 | 0.1 | 1921 | 9 |
| 1948 penny no mint mark worth today | 1.64 | 0.1 | 9350 | 43 |
| 1928 wheat penny no mint mark | 0.96 | 0.1 | 3259 | 21 |
| 1928 penny worth today no mint mark | 1.03 | 1 | 4425 | 22 |
| 1928 wheat penny worth no mint mark | 0.02 | 0.8 | 1702 | 35 |
| 1928 wheat penny value no mint mark | 1.07 | 0.5 | 6319 | 29 |
| 1928 penny value no mint mark | 1.48 | 0.4 | 7582 | 22 |
| 1928 no mint mark wheat back lincoln penny | 0.13 | 0.2 | 7735 | 62 |
