Flatgate brought up a good point and the fact that it letters as a 'brassie. makes the under neath proper being its 'blued" ( they could NOT blue the gun with the frame attached ,like they "usually" did the all steel frames, all together, as a "unit" thus it would NOT be blued underneath, except for the oittle bit that would "leech" under the "joint".....as we all agree ,it really is the issue of that cylinder, being added?? (replaced)?? but pour quos (sic) sorry BigBore.....as we all can see, OBVIOUSLY, the polishing of this cylinder is completely 'wrong'....all in all still a NICE gun, we like it and if it was mine, I'd keep an eye out for an "original" old model Super cylinder for it, it can be polished to "match"..........