As far as I know, the 38Spl Targets 8" were all 1980.
IIRC , around 3500 blued ,and 251 bright nickels were made.
LNIB /NIB blued have some increased collector value over std 8" 357 blued.
A nice nickel Target,especially NIB, has significantly increased collector value.
Not aware of any Targets with red or orange insert front sight.
The factory scoped hunting 8" Pythons, a different story.