There were no Eisenhower dollars struck in 1966. The first circulation issues weren't struck until 1971. Please check your coin again and post a new question. And in any case President Eisenhower was still alive in 1966 so his portrait could not appear on a circulating coin at that time.
Face value only.
Check that coin again. Eisenhower was on a large dollar, and Kennedy is on the half dollar. Either way, a circulated specimen is worth face value.
Eisenhower was on the one dollar coin, not the half, and they're worth one dollar.
Face value only, if it is circulated. If it is uncirculated, it is approximately $2.25
The 1990 Eisenhower Commemorative Dollar was issued in proof and in mint state condition. The value of each of them ranges between $20 - $30.
One dollar.
One dollar.
The 1972-S Proof Eisenhower Dollar has a current retail value of $6.50
They're still worth a dollar.
One dollar.
Face value only.
Check that coin again. Eisenhower was on a large dollar, and Kennedy is on the half dollar. Either way, a circulated specimen is worth face value.
About $3.25.
It's still only worth 1 dollar.
One dollar.
Current value of a 1990 Eisenhower Centennial dollar is $23.00-$25.00.
Sorry no such thing