I have just read some posts by Raimey E. where Herr Steigele Sr. and Jr. are written as Karl. In one blurry scan of a news article the name appears to be spelled as Karl but in another as Carl.
I have just purchased a drilling marked on the rib "C. Stiegele München" in gold inlay. At this point the best I can tell the drilling was made between 1891 and 1910. Were there two different Stiegele firms that were located in Munich or is it just a matter of two ways of spelling the same thing.
As a side note, my father was named Carl by his Alsatian French father but my German grandmother wanted my dad's name to be spelled Karl.
Thanks,
Roger