Sachs made them for some years before the 130mm rear spacing took over. Spidel/Maillard also had seven speed freewheels if you are into the French classic stuff (I run them on my 1985 Vitus Plus Carbone bike, but they are harder to find than the Sachs as they did not make them for too long before Spidel died out. Please note that these 7 speed FWs do work best with narrow chains though.
Chombi