I agree with Michael_Watson and judex:
Fuchsschwanz = hand saw
Das besondere am Fuchsschwanz ist, wie Re in #2 anmerkt, dass nackte Saegeblatt.
Eine
tenon saw dagegen hat kein nacktes Saegeblatt, sondern eine Verdickung am oberen Ende des Saegeblattes (eine spezielle Form der
back saw):
"The term back saw refers to any saw which has a blade which is much thinner than a hand or rip saw and has been stiffened by a folded piece of metal which is crimped on the upper portion of the blade. [...] The Tonond, or Tenon Saw was the largest of the back saws and was made in lengths from 18 to 20 inches. As the name suggests, it was used for cutting tenon cheeks, and was most commonly found in a 10 ppi rip configuration. This particular name has "stuck" and is commonly used to refer to any back saw."
http://www.vintagesaws.com/library/ftj/fall97...Vgl. auch die Google-Bilder-Suchen:
http://images.google.ca/images?q=hand+saw&nds...http://images.google.ca/images?svnum=10&hl=en...Waere vielleicht einen Eintrag wert, wenn sich jemand die Muehe machen will.