From 1971-1974 the U.S. Government issued mint state Eisenhower dollars, struck in silver, in singular packaging with blue envelopes, commonly referred to as "Blue Ikes" by collectors.
| Country | United States of America |
| Year | 1974 |
| Serie | Silver Ikes |
| Denomination | $1 (One Dollar) |
| Mint | San Francisco |
| coinage-type | Eisenhower Dollar |
| desg | MS |
| designer | Frank Gasparo |
| diameter | 38.1 |
| edge | Reeded |
| fineness | 40% |
| material | 40% silver; 60% copper |
| mint-mark | S |
| mintage | 1,900,156 |
| variety | Silver |
| weight-grams | 24.59 |
| year-display | 1971-1974 |