One engine set of eight new TRW brand valves (made in Germany), part numbers 059-109-601 & 059-109-611 or 3304 & 3306.  The set includes four intake and four exhaust valves.  These fit:

Audi 100 1760cc & 100LS 1760cc 1970 - 1972
Audi 100GL, 100, & 100LS 1871cc 1972 - 1977
Audi Super 90 1760cc 1969