This decal set was created to allow a greater flexibility in renumbering existing Chessie System decorated locomotives to another number of choice. Although this set is has prefixes geared towards specific locomotive types, it could be used to renumber any Chessie locomotive accurately including both cab numerals and initials as well as number board numbers as well.
Detailed instructions for decaling can be found in any standard set given by major manufacturers supplied with their product, such as Microscale.
For references in regard to Chessie System Locomotives, please review the online website Chessie Photo Archives by Dean Heacock. http://www.trainweb.org/chessiephotos/