It would seem that the Charles originated from the phrase Charles Daly Lindner ..... From the large effort of Hans Pfingsten & John Mann in DGJ Summer 2005, Vol. 16 Issue 2, page 84-85, either the "n" of Lindner was dropped thru translation or from a Berlin?? advert noting:

"H.A. Linder - Suhl
Founded 1874
Berlin Salesrooms
P. Helbig Wilhelmstrasse 53
Specialty
Charles Daly Guns
For
Export to North America"

Much on the topic here:
http://www.doublegunshop.com/forums/ubbthreads.php?ubb=showflat&Number=162445&page=1

Kind Regards,

Raimey
rse