Does anyone know if there is a different way to tell the difference between the 3 types of 1972 Eisenhowers besides the islands? Some of my type 1's look like they could be type 3's, maybe the islands are worn. Also, I did hear that the type 1 looks like the back of a 1971 and the type 3 looks like the back of a 1974. Anyone else hear this? Thanks!
This link will help you understand what you have also it will have the most comprehensive study of the ike dollar you can get for free enjoy.... http://www.ikegroup.info/?page_id=184
There are two different varieties for 1972 Type 2 and make sure be aware of them. (March and August) More info
The Redbook is neglect in information regarding the three different 1972 Reverse Types and would offer little if any useable information. The best method of getting this information is simply to ask! The Eisenhower Dollar came with 6 distinct reverse types. Type 1 = Three Distinct Islands off the coast of Florida mainly to the East. (RDV-001) Produced in 1971 thru 1972. All 1972 Denver coins have a Type 1 reverse. Some 1972 Philly coins have a Type 1 reverse. Type 2 = Three Islands off the coast of Florida but they are represented by incused lines instead of devices that rise above the fields. This particular reverse is actually a Proof Reverse Die that got onto the Philadelphia Production floor. Speculation and research shows that only one die was used. Its also referred to as a high relief die since it was intended for Proof Production which can produce high relief coins. (RDV-002) Speculation is that less than 130,000 coins are of the Type 2 reverse which is considered rare by many folks. Type 3 = Three distinct Islands off the coast of Florida but more centered under Florida. (RDV-003) The reverse showed up in the later stages of production for the Philly coins and represents a higher relief than the Type 1 coins produced earlier in the year. Type 4 = The First reverse for the BiCentennial Coins where the lettering around the outside was broad and flat. (RDV-004) These were produced during the 1975 Production run. All 1975 Mint sets have the Type 4 reverse. For BiCentennial coins these are referred to as Type 1's. Type 5 = The Second reverse for BiCentennial Coins where the lettering around the outside was narrower but higher in relief. (RDV-005) These were produced during the 1976 Production run. All 1976 Mint sets have the Type 5 reverse. For BiCentennial coins these are referred to as Type 2's. Type 6 = Six to Seven distinct Islands off the coast of Florida along with modified craters to the left of the Eagle which also did not have a furrowed brow. Commonly known as the Friendly Eagle Variety. This reverse is only found on 1971-D coinage and is the latest Eisenhower discovery. Speculation is that less than 500,000 of these were minted, possibly less. One picture worth 10,000 words: For real time examples, check out the 40% Silver Business Strikes. 1971-S = Type 1 1972-S = Type 2 1973-S = Type 3 There, now you know as much as I do.