The Parisian departments were rearranged in 1967, but the constituency lines only changed where the new departments bisected existing constituencies (so only in the western suburbs). Lyon was similarly rearranged in 1973, and a seat was added in Corsica when the island was bisected in 1976. Other than that, the metropolitan French seats kept the same boundaries for every election from 1958 to 1981. After the brief experiment with PR under Mitterrand, the boundaries were redrawn to add about eighty new seats, which were in turn kept in place unchanged until 2012.Was there just no reapportionment during the de Gaulle era? The boundaries look precisely the same (to my eyes, anyways) as the 1958 map you'd done earlier. Even Paris seems to be identical, the city and both courrones.
When I get to 1981, I plan to make a map of electorate sizes - it's going to be wild, even in 1967 there was probably close to a 2:1 disparity between the largest and smallest constituencies.