Oddbawl
The ''E'' over the ser# is a revision digit which signifies the different modifications that were made to improve the weak points of the 97 through out it 46 odd year production run. The ''E'' is the final revision found on a 97, mine is a 1942 and is also an "E''. You have yourself a good old pump gun that will still give you another 100 years of dependable service.
Regards



























