The difference between the 1996 and 1997 WiF Classic countersheets 1-6 is that MAR units have their box background colored in light green.
With the issuing of CLiF & CoiF, the existing CLs and SUBs were revised.
China CL Ying Swei Shore Bombardment 2 (was 1)
Russia CL Donetz Replaced by CL Murmansk, same numbers, except Range 3 (was 2)
Russia SUB (2-7-0-0-5-4) Dated 1938 (was 1936)
Russia SUB (3-7-0-0-4-3) Dated 1936 (was 1938)