Hello Panda,
I have some Swiss revolver books that I will be getting in the next few months from Europe; but now cannot help with the dates.
LF members "Swissdaggers" and "Guisan" visit the LF from time to time; but they do hang out a lot more at the following great Swiss weapons site :
http://pub18.ezboard.com/btheswissri...ommessageboard
You might try posting your question there in the pistol section.
p.s. Regarding your P-s/n M1882; I think it might be a commercial sale revolver...
Regards,
Pete... <img border="0" alt="[typing]" title="" src="graemlins/yltype.gif" />