The 1976 Eisenhower Dollar had a one year reverse design displaying the Liberty Bell as well as an image of the moon in the background. 1976 Eisenhower Dollars were actually struck in 1975 but had the date of 1976 on the actual coins.
The 1976 Type 1 is the scarcer variety from the Type I and Type II variations struck this year. Even examples in MS65 are very hard to find for the 1976 Type I. Any example grading MS66 or higher for this coin should definitely be sent in to get graded, so that it remains preserved for many years to come as it is a rare coin in higher grade condition.