Smith made 54 4" brushed nickel 28s in 1972 . They also made 25 5" bright nickel 28s for the Florida HP in 1959. Most all of those found are in collections now. No other nickel 28s of any kind are known to exist except aftermarket refinished ones. The 54 from 1972 was one S serial number S2875XX and the other 53 were from N28400 and N59622 in the five digit range. The 25 FHPs form 1959 were in the S1890XX and S1926XX rage. All no dash and 4 screw guns obviously. They never made any 28's in stainless. Any other finish other than factory blued on a 28 is aftermarket. Nickel plate,Chromoloy, Metalife, hard Chrome in shiny and brushed--all were popular.