They're the engraver's initials - Dennis R. Williams
The reverse was designed by Dennis R. Williams, those are his initials.
The reverse of the bicentennial Eisenhower dollar was designed by Dennis R. Williams, so those are his initials on the coin.
The Eisenhower's do.
The front looks the same as any other Eisenhower dollar, but with 1776-1976 for the date. Then on the back, it shows the Liberty Bell and the moon.
It's BIG (38.1mm) and has a bust of Eisenhower on the front & the Liberty Bell and moon on the back.
Albert Belle, Alexander Grahme Bell
The mintmark (if any) is right above the bell and right under the E in "STATES" on the reverse.
If you are referring to a dual-dated 1776-1976 Bicentennial dollar, circulation issues were struck in copper-nickel and are worth face value only. Proofs and mint-set coins were struck in both copper-nickel and 40% silver. The silver coins sell for 7 or 8 dollars, the copper-nickel ones for about $3.
no it is not
Under a Glass Bell was created in 1944.
She published under the pen name Ellis Bell.
Please check your coin again and post a new question. The U.S. didn't mint any $1 coins from 1936 to 1970 inclusive.If you have a coin with Ben Franklin on the front and the Liberty Bell on the back, it's a half dollar just like it says under the bell.