Unusual?
If you mean the Stainless GF, these were a limited run, and do see them from time to time. I'm away from my note's so don't have the details, but WMG will be along with a nice box end and gun picture.
The red paint on the front sight, helps the eyes I guess.
I really like the Bisley 6.5" Single Sixes.
Nice gun, Real perty wood, Good picture.