The blade reads Peter Tesh, but that search turned up few results. There's a ca. 1600 Peter Tesche Sword at the Metropolitan Museum of Art, but they don't have an image online for it. The book German Swords and Swordmakers mentions an Alsace Peter Tesch working in the years 1636-1657 as well as a Johan Peter Tesch working in the late eighteenth century with one date at 1795. I've also read that the maker Pedro de Velmonte was very well respected and that a Peter Tesche later used some of his markings which resemble the dotted markings around Peter's name on the blade. There was another sword posted in an article online with the name "Pedro Tesch" but the markings don't resemble anything on our blade.
Pedro Tesch:
[ Linked Image ]
I'm just curious if anybody here might have any information on these marks or the blade? We're trying to determine likely dates for the blade or whether it's a later forgery using a well-known name.
Thanks, any information would be much appreciated,
-Alain

Head mark [ Download ]

Name and marks [ Download ]

Name and mark with a little bit of the guard [ Download ]