The go-to copper cookware from French historic brand Mauviel includes the Mauviel Copper 8-Piece Cookware Set with 1.5mm copper construction and a non-reactive stainless steel interior ...

and this set in particular is said to be from the 1950s. A known favourite of the beloved chef Julia Child, Mauviel is a classic Parisian cookware brand which specialises in copper pans.