1950s L’Etang French professional Patisserie hard candy chocolate moulds / molds made in France metal cast mould / mold

Professional chocolaterie Pâtisserie metal cast Hard Candy/ chocolate / candy mold / mould.
In the shape of seashells.
It has the name L’étang Paris on the side.
Made in France.
There are eighteen pieces in the mould.
It measures approximately 30 cm by 17 cm or in inches it is 12 inches by 6 5/8 inches.
Weighs approximately just under 1,250 grams.
Heavy casting.
It is clean but has been used before.
I believe it is stainless steel.
Used item.
Bought from a french man who was retiring his Patisserie Shop.