Veith tires on the Porsche... never heard of them

http://forums.pelicanparts.com/8914524-post32224.html

It seems that the people in the Veith family have been a part of tires manufacturing and research and development for a really long time (see the next post from the 1890s patent for a air valve for tires)

and in 1983, A G Veith was in R and D at BF Goodrich https://www.astm.org/DIGITAL_LIBRARY/STP/PAGES/STP28516S.htm

and wrote chapter one of the book on tires "Frictional Interaction of Tire and Pavement edited by W. E. Meyer"

Veith Tires Automobil Revue, Numero Catalouge 1967. Switzerland

https://murdercycles.tumblr.com/post/615396859636301824/veith-tires-automobil-revue-numero-catalouge#notes