i think johnwill's advice is best but if you just want the info, try
www.coltautos.com/1908vpdi.htm they got take down & parts info on a whole bunch of old colts. i've got one old 25 from 1918 put away. i've taken apart a 1903/1908 pocket in 380 and it was a pain.didn't think i could do anything but sell it for parts but finally got it together.anyway lol if you try. hope the info helps