Your answers only led me to an online source that I may have found myself, nothing gained from your expert experience. after searching and searching, I found out why I can't find much information on it, or the company.
1) there WAS a huge, great, informational site on Mauthe clocks, where you could even ask the site owner about Mauthes, but ALL of his Web pages are down.
He must have presumably gone out of business or something.
2) I dug even deeper and finally found a forum discussion on Mauthe clocks.
Friedrich Mauthe (June 02, 1822 - February 02, 1884) started a small clock factory in Schwenningen in 1870 and by 1899 the firm was also making its own cases.